@inproceedings{albers-96,
 author = {M. J. Albers},
 title= {Decision making: a missing facet of effective documentation},
 booktitle = {Proc. of 19th annual international conference on Computer documentation (SIGDOC'96)},
 year = {1996},
 isbn = {0-89-791-799-5},
 pages = {57--65},
 location = {Research Triangle Park, North Carolina, United States},
 doi = {http://doi.acm.org/10.1145/238215.238256},
 publisher = {ACM Press},
 }


@Article{conklin-87,
  author = 	 {J. Conklin},
  title = 	 {Hypertext: an intruduction and survey},
  journal = 	 {IEEE Computer},
  year = 	 {1987},
  OPTkey = 	 {},
  volume = 	 {20},
  number = 	 {9},
  pages = 	 {17--41},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@webdocument{urban-lurain-96,
  author =       {M. Urban-Lurain},  
  title = 	 {Intelligent Tutoring Systems: An Historic Review in the Context of the Development of Artificial Intelligence and Educational Psychology},
  url =          {http://www.cse.msu.edu/rgroups/cse101/ITS/its.htm},
  checked =      {27.4.2003}, 
  year = 	 {1996},
  note = {},
  OPTannote = 	 {}
}

@inproceedings{albers-98,
 author = {M. J. Albers},
 title= {Goal-driven task analysis: improving situation awareness for complex problem-solving},
 booktitle = {Proc. of 16th annual interantional conference on Computer Documentation (SIGDOC'98)},
 year = {1998},
 isbn = {1-58113-004-X},
 pages = {234--242},
 location = {Quebec, Quebec, Canada},
 doi = {http://doi.acm.org/10.1145/296336.296388},
 publisher = {ACM Press},
 }

@inproceedings{albers-99,
 author = {M. J. Albers},
 title= {Information design considerations for improving situation awareness in complex problem-solving},
 booktitle = {Proc. of 17th annual international conference on Computer documentation (SIGDOC'99)},
 year = {1999},
 isbn = {1-58113-072-4},
 pages = {154--158},
 location = {New Orleans, Louisiana, United States},
 doi = {http://doi.acm.org/10.1145/318372.318581},
 publisher = {ACM Press},
}

@InProceedings{alden-00,
  author = 	 {R. T. H. Alden},
  title = 	 {How to Put Your Course on the Web},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of Canadian Conference on Electrical and Computer Engineering},
  pages = 	 {1207--1211},
  year = 	 {2000},
  OPTeditor = 	 {},
  volume = 	 {2},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Halifax, NS, Canada},
  month = 	 mar,
  OPTorganization = {},
  publisher = {IEEE},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Webdocument{hy-avaintiedot-02,
  key = 	 {Tiedotus},
  organization = {Helsingin yliopiston tiedotus},
  title = 	 {Avaintietoja Helsingin yliopistosta 2002},
  url =          {http://www.helsinki.fi/tietoa/avaintiedot02.html},
  checked =      {16.3.2003}, 
  year = 	 {2002},
  note = {},
  OPTannote = 	 {}
}

@Webdocument{wayback-hyweb,
  key = 	 {IA},
  organization = {Internet Archive},
  title = 	 {WaybackMachine~-arkisto: www.helsinki.fi},
  url =          {http://web.archive.org/web/*/http://www.helsinki.fi/},
  checked =      {20.3.2003}, 
  year = 	 {2003},
  note = {},
 OPTannote = 	 {}
}

@Book{alexander-77,
  author = 	 {C. Alexander and S. Ishikawa and M. Silverstein},
  ALTeditor = 	 {},
  title = 	 {The Pattern Language: Towns, Buildings, Construction},
  publisher = 	 {Oxford University Press},
  year = 	 {1977},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  OPTaddress = 	 {},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Book{alexander-79,
  author = 	 {C. Alexander},
  ALTeditor = 	 {},
  title = 	 {The Timeless Way of Building},
  publisher = 	 {Oxford University Press},
  year = 	 {1979},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  OPTaddress = 	 {},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@InProceedings{anton-98,
  author = 	 {A. I. Antón and C. Potts},
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  OPTcrossref =  {},
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  booktitle = {Proc. of International Conference on Software Engineering},
  pages = 	 {157--166},
  year = 	 {1998},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Kyoto, Japan},
  month = 	 apr,
  organization = {IEEE},
  OPTpublisher = {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Article{baddeley-94,
  author = 	 {A. D. Baddeley},
  title = 	 {The magical number seven: Still magical after all these years?},
  journal = 	 {Psychological Review},
  year = 	 {1994},
  OPTkey = 	 {},
  volume = 	 {101},
  OPTnumber = 	 {},
  pages = 	 {353--356},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@InProceedings{bailey-02,
  author = 	 {C. Bailey and W. Hall and D. E. Millard and M. J. Weal},
  title = 	 {Towards Open Adaptive Hypermedia},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. Second International Conference on Adaptive Hypermedia and Adaptive Web Based Systems},
  pages = 	 {36--46},
  year = 	 {2002},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  number = 	 {2347},
  series = 	 {Lecture Notes on Computer Science},
  address = 	 {Malaga, Espanja},
  OPTmonth = 	 {},
  OPTorganization = {},
  publisher = {Springer},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Book{bandura-77,
  author = 	 {A. Bandura},
  ALTeditor = 	 {},
  title = 	 {Social Learning Theory},
  publisher = 	 {Prentice-Hall},
  year = 	 {1977},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Englewood Cliffs, New Jersey, USA},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Article{beck-99,
  author = 	 {K. Beck},
  title = 	 {Embracing Change with Extreme Programmming},
  journal = 	 {IEEE Computer},
  year = 	 {1999},
  OPTkey = 	 {},
  volume = 	 {32},
  number = 	 {10},
  pages = 	 {70--77},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@InProceedings{bernard-01,
  author = 	 {M. Bernard},
  title = 	 {Developing schemas for the location of common web objects},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. Human Factors and Ergonomics Society 45th Annual Meeting},
  pages = 	 {1161--1165},
  year = 	 {2001},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Minneapolis/St. Paul, USA},
  month = 	 oct,
  OPTorganization = {},
  OPTpublisher = {},
  note = 	 {\url{http://psychology.wichita.edu/hci/projects/HFES web object.htm}},
  OPTannote = 	 {}
}

@article{berners-lee-94,
 author = {T. Berners-Lee and R. Cailliau and A. Luotonen and H. F. Nielsen and A. Secret},
 title= {The World-Wide Web},
 journal = {Communications of the ACM},
 volume = {37},
 number = {8},
 year = {1994},
 issn = {0001-0782},
 pages = {76--82},
 doi = {http://doi.acm.org/10.1145/179606.179671},
 publisher = {ACM Press},
 }

@Book{beyer-98,
  author =	 {H. Beyer and K. Holzblatt},
  title = 	 {Contextual Design},
  publisher = 	 {Morgan Kaufman Publishers},
  year = 	 {1998},
  address =	 {San Francisco, USA},
  annote =       {contextual design}
 }

@Article{bias-91,
  author = 	 {R. Bias},
  title = 	 {Interface-Walkthroughs: Efficient Collaborative Testing},
  journal = 	 {IEEE Software},
  year = 	 {1991},
  OPTkey = 	 {},
  volume = 	 {8},
  number = 	 {5},
  pages = 	 {94--95},
  month = 	 sep,
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@inproceedings{borges-96,
 author = {J. A. Borges and I. Morales and N. J. Rodríguez},
 title = {Guidelines for designing usable World Wide Web pages},
 booktitle = {Proceedings of the CHI '96 conference companion on Human factors in computing systems},
 year = {1996},
 isbn = {0-89791-832-0},
 pages = {277--278},
 location = {Vancouver, British Columbia, Canada},
 doi = {http://doi.acm.org/10.1145/257089.257320},
 publisher = {ACM Press},
 }

@article{broadbent-00,
 author = {S. Broadbent and F. Cara},
 title= {A narrative approach to user requirements for Web design},
 journal = {Interactions},
 volume = {7},
 number = {6},
 year = {2000},
 issn = {1072-5520},
 pages = {31--35},
 doi = {http://doi.acm.org/10.1145/352580.352586},
 publisher = {ACM Press},
 }

@Book{bruer-93,
  author = 	 {J. T. Bruer},
  ALTeditor = 	 {},
  title = 	 {Schools For Thought},
  publisher = 	 {MIT Press},
  year = 	 {1993},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Cambridge,USA/London,England},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Article{calongne-01,
  author = 	 {C. M. Calongne},
  title = 	 {Designing for Web Site Usability},
  journal = 	 {Journal of Computing in Small Colleges},
  year = 	 {2001},
  OPTkey = 	 {},
  volume = 	 {16},
  number = 	 {3},
  pages = 	 {39--45},
  month = 	 mar,
  OPTnote = 	 {Consortium for Computing in Small Colleges},
  OPTannote = 	 {}
}

@Book{card-83,
  author = 	 {S. K. Card and T. P. Moran and A. Newell},
  title = 	 {The Psychology of Human-Computer Interaction},
  publisher = 	 {Lawrence Erlbaum Associates},
  year = 	 {1983},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  OPTaddress = 	 {},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  isbn = 	 {0898598591},
  OPTannote = 	 {}
}

@InProceedings{carlshamre-00,
  author = 	 {P. Carlshamre and B. Regnell},
  title = 	 {Requirements Lifecycle Management and Release Planning in Market-Driven Requirements Engineering Processes},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. Intl. Workshop on Database and Expert Systems Applications},
  pages = 	 {961--965},
  year = 	 {2000},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {London, UK},
  month = 	 sep,
  organization = {IEEE},
  OPTpublisher = {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@article{carlshamre-01,
 author = {P. Carlshamre and M. Rantzer},
 title= {Dissemination of Usability: Failure of a Success Story},
 journal = {Interactions},
 volume = {8},
 number = {1},
 year = {2001},
 issn = {1072-5520},
 pages = {31--41},
 doi = {http://doi.acm.org/10.1145/356978.356987},
 publisher = {ACM Press},
 }

@InProceedings{carlshamre-96,
  author = 	 {P. Carlshamre and J. Karlsson},
  title = 	 {A Usability-oriented Approach to Requirements Engineering},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of Second Internation Conference on Requirements Engineering},
  pages = 	 {145--152},
  year = 	 {1996},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Colorado Springs, CO, USA},
  month = 	 apr,
  organization = {IEEE},
  OPTpublisher = {},
  OPTnote = 	 {},
  annote = 	 {Introduction to the Delta method}
}

@InProceedings{casteleyn-01,
  author = 	 {Sven Casteleyn and Olga De Troyer},
  title = 	 {Structuring Web Sites Using Audience Class Hierarchies},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of International Workshop on Data Semantics in Web Information Systems (DASWIS 2001)},
  pages = 	 {??-??},
  year = 	 {2001},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Yokohama, Japan},
  month = 	 nov,
  OPTorganization = {},
  publisher = {Springer-Verlag},
  OPTnote = 	 {},
  OPTannote = 	 {Lecture Notes in Computer Science}
}

@article{catledge-95,
 author = {L. D. Catledge and J. E. Pitkow},
 title= {Characterizing browsing strategies in the World-Wide Web},
 journal = {Computer Networks and ISDN Systems},
 volume = {27},
 number = {6},
 year = {1995},
 issn = {0169-7552},
 pages = {1065--1073},
 doi = {http://dx.doi.org/10.1016/0169-7552(95)00043-7},
 publisher = {Elsevier Science Publishers B. V.}
 }

@InProceedings{chappelet-00,
  author = 	 {J.-L. Chappelet and A. Le Grand},
  title = 	 {Designing Service-Centered Web Sites for Public Administrations},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of Intl. Workshop on Database and Expert Systems Applications},
  pages = 	 {354--361},
  year = 	 {2000},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {London, UK},
  month = 	 sep,
  organization = {IEEE},
  OPTpublisher = {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@InProceedings{chi-01,
  author = 	 {E. H. Chi and P. Pirolli and K. Chen and J. Pitkow},
  title = 	 {Using Information Scent to Model User Information Needs and Actions on the Web},
  booktitle = {Proc. of Conference on Human Factors in Computing Systems (SIGCHI'01)},
  pages = 	 {490--497},
  year = 	 {2001},
  OPTeditor = 	 {},
  address = 	 {Seattle, WA, USA},
  month = 	 mar,
  OPTorganization = {},
  publisher = {ACM Press},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@inproceedings{coble-97,
 author = {J. M. Coble and J. Karat and M. G. Kahn},
 title= {Maintaining a focus on user requirements throughout the development of clinical workstation software},
 booktitle = {Proc. of Conference on Human Factors in Computing Systems},
 year = {1997},
 isbn = {0-89791-802-9},
 pages = {170--177},
 location = {Atlanta, Georgia, United States},
 doi = {http://doi.acm.org/10.1145/258549.258698},
 publisher = {ACM Press},
 }

@Article{cockburn-01,
  author = 	 {A. Cockburn and B. McKenzie},
  title = 	 {What Do Web Users Do? An Empirical Analysis of Web Use},
  journal = 	 {Int. Journal of Human-Computer Studies},
  year = 	 {2001},
  OPTkey = 	 {},
  volume = 	 {54},
  number = 	 {6},
  pages = 	 {903-922},
  month = 	 jun,
  OPTnote = 	 {},
  OPTannote = 	 {}
}


@InProceedings{coda-98,
  author = 	 {F. Coda and C. Ghezzi and G. Vigna and F. Garzotto},
  title = 	 {Towards a Software Engineering Approarch to Web Site Development},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of 9th International Workshop on Software Specification and Design},
  pages = 	 {8-17},
  year = 	 {1998},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  OPTaddress = 	 {},
  OPTmonth = 	 {},
  organization = {IEEE},
  OPTpublisher = {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Article{constantine-02,
  author = 	 {L. L. Constantine and L. A. D. Lockwood},
  title = 	 {Usage-Centered Engineering for Web Applications},
  journal = 	 {IEEE Software},
  year = 	 {2002},
  OPTkey = 	 {},
  volume = 	 {19},
  number = 	 {2},
  pages = 	 {42-50},
  month = 	 mar,
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Book{cooper-95,
  author =	 {A. Cooper},
  title = 	 {About Face, the Essentials of User Interface Design},
  publisher = 	 {IDG Books Worldwide, Inc},
  year = 	 {1995},
  address = 	 {Foster City, CA, USA},
  annote = 	 {}
}

@Webarticle{constantine-00,
  OPTkey = 	 {},
  author = 	 {L. Constantine},
  title = 	 {Insight on In-Site Searching},
  month = 	 apr,
  year = 	 {2000},
  url = 	 {http://www.foruse.com/articles/searching.htm},
  checked =      {4.6.2002},
  OPTannote = 	 {}
}


@Book{cooper-99,
  author = 	 {A. Cooper},
  title = 	 {The Inmates Are Running the Asylum},
  publisher = 	 {SAMS},
  year = 	 {1999},
  address = 	 {USA},
  OPTannote = 	 {}
}

@Webdocument{tidwell-99,
  OPTkey = 	 {},
  author = 	 {J. Tidwell},
  title = 	 {Common Ground: A Pattern Language for Human-Computer Interface Design},
  month = 	 may,
  year = 	 {1999},
  url = 	 {http://www.mit.edu/\~jtidwell/common_ground.html},
  checked =      {18.7.2002},
  OPTannote = 	 {}
}

@Webdocument{tidwell-essay-99,
  OPTkey = 	 {},
  author = 	 {J. Tidwell},
  title = 	 {The Case for HCI Design Patterns},
  month = 	 may,
  year = 	 {1999},
  url = 	 {http://www.mit.edu/~jtidwell/ui_patterns_essay.html},
  checked =      {7.10.2002},
  OPTannote = 	 {}
}

@Webreport{spool-97,
  key = 	 {UIE},
  OPTauthor = 	 {},
  organization = {User Interface Engineering},
  title = 	 {Why On-Site Searching Stinks},
  month = 	 sep,
  year = 	 {1997},
  url = 	 {http://www.uie.com/searchar.htm},
  checked =      {18.2.2003},
  annote = 	 {Eye For Design newsletter, 1997}
}

@Webdocument{html40-formsubmission,
  key = 	 {W3C},
  OPTauthor = 	 {},
  organization = {World Wide Web Consortium (W3C)},
  title = 	 {HTML 4.01 Specification, 17.13.1 Form submission method},
  month = 	 dec,
  year = 	 {1999},
  url = 	 {http://www.w3.org/TR/html4/},
  checked =      {18.2.2003},
  annote = 	 {}
}

@Webreport{smith-86,
  key = 	 {},
  author = 	 {S. L. Smith and J. N. Mosier},
  organization = {MITRE Corporation},
  title = 	 {Guidelines fro designing user interface software},
  month = 	 aug,
  year = 	 {1986},
  url = 	 {ftp://archive.cis.ohio-state.edu/pub/hci/Guidelines/},
  checked =      {20.9.2002},
  annote = 	 {}
}


@InCollection{diaper-89,
  author = 	 {D. Diaper},
  title = 	 {Task observation for human-computer interaction},
  booktitle = 	 {Task Analysis for Human-Computer Interaction},
  pages = 	 {210-237},
  publisher = {Ellis Horwood},
  year = 	 {1989},
  editor = 	 {D. Diaper},
  address = 	 {Chichester, U.K.},
  annote = {observation}
}

@Webdocument{nci-guidelines,
  key = 	 {NCI},
  OPTauthor = 	 {},
  organization = {National Cancer Institute},
  title = 	 {Research-Based Web Design \& Usability Guidelines},
  year = 	 {2002},
  url = 	 {http://www.usability.gov/guidelines/index.html},
  checked =      {20.9.2002},
  OPTannote = 	 {}
}


@Webarticle{bernard-02,
  OPTkey = 	 {},
  author = 	 {M. Bernard},
  title = 	 {Criteria for optimal web design (designing for usability)},
  month = 	 jan,
  year = 	 {2002},
  url = 	 {http://psychology.wichita.edu/optimalweb/print.htm},
  checked =      {29.6.2002},
  OPTannote = 	 {}
}

@inproceedings{elbayoumi-99,
 author = {J. G. El-Bayoumi},
 title= {Focus on service departmental web site reorganization},
 booktitle = {Proc. of the 27th annual Conference on University and College Computing Services (SIGUCCS'99)},
 year = {1999},
 isbn = {1-58113-144-5},
 pages = {56--60},
 location = {Denver, Colorado, United States},
 doi = {http://doi.acm.org/10.1145/337043.337094},
 publisher = {ACM Press},
 }


@Webarticle{bernard-un-01,
  OPTkey = 	 {},
  author = 	 {M. Bernard},
  title = 	 {Developing schemas for the location of common web objects},
  month = 	 jan,
  site =         {Usability News 3.1},
  year = 	 {2001},
  url = 	 {http://psychology.wichita.edu/surl/usabilitynews/3W/Web_object.htm},
  checked =      {22.7.2002},
  OPTannote = 	 {}
}

@Webarticle{bernard-un-02,
  OPTkey = 	 {},
  author = 	 {M. Bernard},
  title = 	 {User Expectations for the Location fo Common E-Commerce Web Objects},
  month = 	 jan,
  site =         {Usability News 4.1},
  year = 	 {2002},
  url = 	 {http://psychology.wichita.edu/surl/usabilitynews/41/web_object-ecom.htm},
  checked =      {22.7.2002},
  OPTannote = 	 {}
}

@proceedings{er-2000,
  editor    = {Stephen W. Liddle and
               Heinrich C. Mayr and
               Bernhard Thalheim},
  title     = {Conceptual Modeling for E-Business and the Web, ER 2000 Workshops
               on Conceptual Modeling Approaches for E-Business and The World
               Wide Web and Conceptual Modeling, Salt Lake City, Utah, USA,
               October 9-12, 2000, Proceedings},
  booktitle = {ER Workshops},
  publisher = {Springer},
  series    = {Lecture Notes in Computer Science},
  volume    = {1921},
  year      = {2000},
  isbn      = {3-540-41073-2},
  bibsource = {DBLP, http://dblp.uni-trier.de}
}

@InProceedings{fogg-01,
  author = 	 {B. J. Fogg and J. Marshall and O. Laraki and A. Osipovich and C. Varma and N. Fang and J. Paul and A. Rangnekar and J. Shon and P. Swani and M. Treinen},
  title = 	 {What Makes Web Sites Credible? A Report on a Large Quantitative Study},
  booktitle = {Proc. of Conference on Human Factors in Computer Systems (SIGCHI'01)},
  pages = 	 {61--68},
  year = 	 2001,
  address = 	 {Seattle, WA, USA},
  month = 	 mar,
  publisher = {ACM Press}
}

@inproceedings{fogg-99,
 author = {B. J. Fogg and H. Tseng},
 title = {The elements of computer credibility},
 booktitle = {Proc. of Conference on Human Factors in Computing Systems (CHI'99)},
 year = {1999},
 isbn = {0-201-48559-1},
 pages = {80--87},
 location = {Pittsburgh, Pennsylvania, USA},
 doi = {http://doi.acm.org/10.1145/302979.303001},
 publisher = {ACM Press},
 }

@inproceedings{fuccella-97,
 author = {J. Fuccella},
 title= {Using user centered design methods to create and design usable Web sites},
 booktitle = {Proc. of 15th annual International conference on Computer documentation (SIGDOC'97)},
 year = {1997},
 isbn = {0-89791-861-4},
 pages = {69--77},
 location = {Salt Lake City, Utah, United States},
 doi = {http://doi.acm.org/10.1145/263367.263379},
 publisher = {ACM Press}
 }


@Webreport{coyne-01,
  author = 	 {K. P. Coyne and J. Nielsen and C. Goodwin},
  title = 	 {Intranet Design Annual, The Ten Best Intranets of 2001},
  site =         {Nielsen Norman Group},
  year = 	 {2001},
  OPTkey = 	 {},
  OPTnumber = 	 {},
  OPTaddress = 	 {},
  OPTmonth = 	 {},
  url = 	 {http://www.NNgroup.com/reports/intranet/2001},
  checked =      {4.6.2002},
  OPTannote = 	 {}
}

@Book{gamma-95,
  author = 	 {E. Gamma and R. Helm and R. Johnson and J. Vlissides},
  ALTeditor = 	 {},
  title = 	 {Design Patterns, Elements of Reusable Object-Oriented Software},
  publisher = 	 {Addison-Wesley},
  year = 	 {1995},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  OPTaddress = 	 {},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@article{garzotto-93,
 author = {F. Garzotto and P. Paolini and D. Schwabe},
 title= {HDM --- a model-based approach to hypertext application design},
 journal = {ACM Transactions on Information Systems (TOIS)},
 volume = {11},
 number = {1},
 year = {1993},
 issn = {1046-8188},
 pages = {1--26},
 doi = {http://doi.acm.org/10.1145/151480.151483},
 publisher = {ACM Press},
 }

@inproceedings{grady-00,
 author = {H. M. Grady},
 title= {Web Site Design: A Case Study in Usability Testing Using Paper Prototypes},
 booktitle = {Proc. of IEEE International Professional Communication Conference (IPCC/SIGDOC'00)},
 year = {2000},
 isbn = {0-7803-6431-7},
 pages = {39--44},
 location = {Cambridge, Massachusetts},
 publisher = {IEEE Educational Activities Department}
 }


@InProceedings{greenberg-99,
  author = 	 {S. Greenberg and A. Cockburn},
  title = 	 {Getting Back to Back: Alternate Behaviors for a Web Browser's Back Button},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of the 5th Annual Human Factors and the Web Conference},
  OPTpages = 	 {},
  year = 	 {1999},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Gaitherburg, Maryland, USA},
  month = 	 jun,
  organization = {NIST},
  OPTpublisher = {},
  note = 	 {\url{http://zing.ncsl.nist.gov/hfweb/proceedings/proceedings.en.html}},
  OPTannote = 	 {}
}

@InProceedings{guell-00,
  author = 	 {N. Güell and D. Schwabe and P. Vilain},
  title = 	 {Modeling Interactions and Navigation in Web Applications},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Conceptual Modeling for E-Business and the Web, ER 2000 Workshops on Conceptual Modeling Approaches for E-Business and The World Wide Web and Conceptual Modeling},
  pages = 	 {115--127},
  year = 	 {2000},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  series = 	 {Lecture Notes in Computer Science},
  address = 	 {Salt Lake City, Utah, USA},
  month = 	 oct,
  OPTorganization = {},
  publisher = {Springer},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Unpublished{haastattelu-hakli-02,
  author = 	 {I. Rinne},
  title = 	 {Raul Hakli, muistiinpanot haastattelusta 10.5.2002},
  note = 	 {Julkaisematon raportti},
  OPTkey = 	 {},
  month = 	 may,
  year = 	 {2002},
  OPTannote = 	 {}
}

@Unpublished{haastattelu-laakso-02,
  author = 	 {I. Rinne},
  title = 	 {Lauri Laakso, muistiinpanot haastattelusta 8.10.2002},
  note = 	 {Julkaisematon raportti},
  OPTkey = 	 {},
  month = 	 oct,
  year = 	 {2002},
  OPTannote = 	 {}
}


@Unpublished{haastattelu-lemstrom-02,
  author = 	 {I. Rinne},
  title = 	 {Kjell Lemström, muistiinpanot haastattelusta 13.5.2002},
  note = 	 {Julkaisematon raportti},
  OPTkey = 	 {},
  month = 	 may,
  year = 	 {2002},
  OPTannote = 	 {}
}

@Unpublished{haastattelu-mielikainen-02,
  author = 	 {I. Rinne},
  title = 	 {Taneli Mielikäinen, muistiinpanot haastattelusta 7.5.2002},
  note = 	 {Julkaisematon raportti},
  OPTkey = 	 {},
  month = 	 may,
  year = 	 {2002},
  OPTannote = 	 {}
}


@Unpublished{haastattelu-nordlund-02,
  author = 	 {I. Rinne},
  title = 	 {Kai Nordlund, muistiinpanot haastattelusta 8.10.2002},
  note = 	 {Julkaisematon raportti},
  OPTkey = 	 {},
  month = 	 oct,
  year = 	 {2002},
  OPTannote = 	 {}
}

@Unpublished{haastattelu-rydman-02,
  author = 	 {I. Rinne},
  title = 	 {Walter Rydman, muistiinpanot haastattelusta 26.9.2002},
  note = 	 {Julkaisematon raportti},
  OPTkey = 	 {},
  month = 	 sep,
  year = 	 {2002},
  OPTannote = 	 {}
}

@Unpublished{haastattelu-salmenkivi-02,
  author = 	 {I. Rinne},
  title = 	 {Marko Salmenkivi, muistiinpanot haastattelusta 10.5.2002},
  note = 	 {Julkaisematon raportti},
  OPTkey = 	 {},
  month = 	 may,
  year = 	 {2002},
  OPTannote = 	 {}
}

@Book{hackos-98,
  author = 	 {J. T. Hackos and J. C. Redish},
  ALTeditor = 	 {},
  title = 	 {User and Task Analysis for Interface Design},
  publisher = 	 {John Wiley \& Sons},
  year = 	 {1998},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {USA},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@InProceedings{hahsler-00,
  author = {M. Hahsler and B. Simon},
  title = {User-centered Navigation Re-Design for Web-based Information Systems},
  year = 2000,
  editor = {H. Michael Chung},
  publisher = {AIS},
  address = {Long Beach, CA},
  booktitle = {Proceedings of the Sixth Americas Conference on Information Systems (AMCIS 2000)},
  pages = {192--198},
  PDF = {http://wwwai.wu-wien.ac.at/~hahsler/research/webdesign_amcis2000/TT04-11_final.PDF}
}


@Unpublished{hassinen-02,
  author = 	 {M. Hassinen and M. Pietilä and J. Ranta and J. Riipinen and M. Viljanen},
  title = 	 {Käytettävyysraportti, Helsingin yliopiston WWW-sivut},
  note = 	 {Julkaisematon harjoitustyöraportti, HYWEB-ohjelmistotuotantoprojekti, Helsingin yliopisto, tietojenkäsittelytieteen laitos},
  OPTkey = 	 {},
  month = 	 apr,
  year = 	 {2002},
  OPTannote = 	 {}
}

@Unpublished{hassinen-kyselyt-02,
  author = 	 {M. Hassinen and M. Pietilä and J. Ranta and J. Riipinen and M. Viljanen},
  title = 	 {WWW-kyselyn vastauksia},
  note = 	 {Julkaisematon harjoitustyöraportti,
  HYWEB-ohjelmistotuotantoprojekti, Helsingin yliopisto, tietojenkäsittelytieteen laitos},
  OPTkey = 	 {},
  month = 	 apr,
  year = 	 {2002},
  OPTannote = 	 {}
}


@Misc{hy-tiedote-02,
  omit_date =    {yes},
  key =          {Opintoas},
  title = 	 {Ennätysmäärä hakijoita Helsingin yliopistoon},
  OPThowpublished = {},
  OPTmonth = 	 jun,
  year = 	 {2002},
  note = 	 {Helsingin yliopiston opintoasianosaston lehdistötiedote 18.6.2002},
  OPTannote = 	 {}
}

@inproceedings{hysell-98,
 author = {D. Hysell},
 title= {Meeting the needs (and preferences) of a diverse World Wide Web audience},
 booktitle = {Proc. of 16th annual International conference on Computer documentation (SIGDOC'98)},
 year = {1998},
 isbn = {1-58113-004-X},
 pages = {164--172},
 location = {Quebec, Quebec, Canada},
 doi = {http://doi.acm.org/10.1145/296336.296372},
 publisher = {ACM Press}
}

@article{isakowitz-95,
 author = {T. Isakowitz and E. A. Stohr and P. Balasubramanian},
 title= {RMM: a methodology for structured hypermedia design},
 journal = {Communications of the ACM},
 volume = {38},
 number = {8},
 year = {1995},
 issn = {0001-0782},
 pages = {34--44},
 doi = {http://doi.acm.org/10.1145/208344.208346},
 publisher = {ACM Press},
 }

@Manual{iso-9241-11,
  title = 	 {ISO 9241: Ergonomic requirements for office work with visual display terminals},
  key = 	 {ISO-9241-11},
  OPTauthor = 	 {},
  OPTorganization = {International Organization for Standardization},
  OPTaddress = 	 {},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTyear = 	 {},
  note = 	 {Luku 11: Guidance on Usability. International Organization for Standardization},
  OPTannote = 	 {}
}

@Article{ivory-02,
  author = 	 {M. Y. Ivory and M. A. Hearst},
  title = 	 {Improving Web Site Design},
  journal = 	 {IEEE Internet Computing},
  year = 	 {2002},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  pages = 	 {56--63},
  month = 	 mar,
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Book{jacobson-94,
  author = 	 {I. Jacobson},
  ALTeditor = 	 {},
  title = 	 {Object-Oriented Software Engineering: A Use Case Driven Approach},
  publisher = 	 {Addison-Wesley},
  year = 	 {1994},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {USA},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@inproceedings{jeffries-91,
 author = {R. Jeffries and J. R. Miller and C. Warton and . Uyeda},
 title = {User interface evaluation in the real world: a comparison of four techniques},
 booktitle = {Proc. of the Conference on Human Factors in Computing Systems (CHI'91)},
 year = {1991},
 isbn = {0-89791-383-3},
 pages = {119--124},
 location = {New Orleans, Louisiana, United States},
 doi = {http://doi.acm.org/10.1145/108844.108862},
 publisher = {ACM Press},
 }

@inproceedings{kantner-97,
 author = {L. Kantner and S. Rosenbaum},
 title= {Usability studies of WWW sites: heuristic evaluation vs. laboratory testing},
 booktitle = {Proc. of 15th annual conference on Computer documentation (SIGDOC'97)},
 year = {1997},
 isbn = {0-89791-861-4},
 pages = {153--160},
 location = {Salt Lake City, Utah, United States},
 doi = {http://doi.acm.org/10.1145/263367.263388},
 publisher = {ACM Press},
 }

@inproceedings{karat-92,
 author = {C.-M. Karat and R. Campbell and T. Fiegel},
 title = {Comparison of empirical testing and walkthrough methods in user interface evaluation},
 booktitle = {Proc. of Conference on Human Factors in Computing Systems (CHI'92)},
 year = {1992},
 isbn = {0-89791-513-5},
 pages = {397--404},
 location = {Monterey, California, United States},
 doi = {http://doi.acm.org/10.1145/142750.142873},
 publisher = {ACM Press},
 }

@Book{katz-02,
  ALTauthor = 	 {},
  editor = 	 {R. N. Katz},
  title = 	 {Web Portals and Higher Education: Technologies to Make It Personal},
  publisher = 	 {Jossey-Bass},
  year = 	 {2002},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {USA},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Article{kirkpatrick-83,
  author = 	 {S. Kirkpatrick and C. D. Gelatt and M. P. Vecchi},
  title = 	 {Optimization by Simulated Annealing},
  journal = 	 {Science},
  year = 	 {1983},
  OPTkey = 	 {},
  volume = 	 {220},
  number = 	 {4598},
  pages = 	 {671--680},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@webdocument{portaali-03,
  key = 	 {Portaalihanke},
  OPTauthor = 	 {},
  title = 	 {Portaalihankeen aikataulu, Helsingin yliopisto},
  year = 	 {2003},
  url = 	 {http://erinys.it.helsinki.fi:8080/portaalihanke},
  checked =      {7.7.2003},
  OPTannote = 	 {}
}

@Article{kumar-97,
  author = 	 {H. P. Kumar and C. Plaisant and B. Shneiderman},
  title = 	 {Browsing hierarchical data with multi-level dynamic
queries and pruning},
  journal = 	 {International Journal of Human-Computer Studies},
  year = 	 {1997},
  OPTkey = 	 {},
  volume = 	 {46},
  OPTnumber = 	 {},
  pages = 	 {103--124},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Unpublished{kplaakso-00,
  author = 	 {K.-P. Laakso and S. A. Laakso},
  title = 	 {User Interfaces II, Fall 2000},
  note = 	 {Kurssin luentokalvot, Helsingin yliopisto, tietojenkäsittelytieteen laitos},
  year = {2000}
}

@Unpublished{laakso-02,
  author = 	 {S. A. Laakso},
  title = 	 {581391-7 User Interfaces},
  note = 	 {Helsingin yliopisto, tietojenkäsittelytieteen laitos, luentomoniste D 415},
  year = {2002}
}

@Misc{laakso-02-kt,
  OPTkey = 	 {},
  author = 	 {S. A. Laakso and K.-P. Laakso and A. Latva-Koivisto and A. Saura and I. Rinne},
  title = 	 {Käyttöliittymäsuunnittelun käyttötapauksista},
  howpublished = {Useita epämuodollisia keskusteluja aiheesta kevään 2002 Käyttöliittymät-kurssin aikana},
  OPTmonth = 	 {},
  year = 	 {2002},
  OPTannote = 	 {}
}

@Misc{laakso-02-simu,
  OPTkey = 	 {},
  author = 	 {K.-P. Laakso and S. A. Laakso},
  title = 	 {Käyttötapausten simuloinnista},
  howpublished = {Yksityiset keskustelut aiheesta 19.9. ja 20.9. (Ullanlinna ja Vallila, Helsinki)},
  month = 	 sep,
  year = 	 {2002},
  OPTannote = 	 {}
}

@Unpublished{laakso-03,
  author = 	 {S.A. Laakso and K.-P. Laakso},
  title = 	 {Hyvän käyttöliittymän varmistaminen GUIDe-projektimallilla},
  note = 	 {Julkaisematon artikkeli, Helsingin yliopisto, tietojenkäsittelytieteen laitos},
  OPTkey = 	 {},
  month = 	 feb,
  year = 	 {2003},
  url =          {http://www.cs.helsinki.fi/u/salaakso/papers/GUIDe.html},
  checked =      {16.2.2003},
  OPTannote = 	 {}
}

@Unpublished{laakso-arvio-00,
  author = 	 {S. A. Laakso and M. Majuri and A. Saura and K-P. Laakso},
  title = 	 {Helsingin yliopisto, WWW-sivujen (www.helsinki.fi) asiantuntija-arvio},
  note = 	 {Julkaisematon raportti, Interacta Design Oy},
  year = 	 {2000}
}

@Unpublished{laakso-ehdotus-00,
  author = 	 {S. A. Laakso and M. Majuri and A. Saura and K.-P. Laakso},
  title = 	 {Helsingin yliopisto, WWW-sivujen (www.helsinki.fi) käyttöliittymäehdotus},
  note = 	 {Julkaisematon raportti, Interacta Design Oy},
  year = 	 {2000}
}

@Unpublished{laakso-yhteenveto-00,
  author = 	 {S.A. Laakso and A. Saura and I. Rinne and K.-P. Laakso},
  title = 	 {Helsingin yliopiston WWW-sivut (www.helsinki.fi), käyttäjäselvitysten yhteenvetoja},
  note = 	 {Julkaisematon raportti, Interacta Design Oy},
  year = 	 {2000},
}

@InCollection{larkin-89,
  author = 	 {J. H. Larkin},
  ALTeditor = 	 {},
  title = 	 {What kind of knowledge transfers?},
  booktitle = 	 {Knowing, Learning, and Instruction: Essays in Honor of Robert Glaser},
  OPTcrossref =  {},
  OPTkey = 	 {},
  OPTpages = 	 {},
  publisher = {Erlbaum},
  year = 	 {1989},
  editor = 	 {L. B. Resnick},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  OPTtype = 	 {},
  OPTchapter = 	 {},
  OPTaddress = 	 {},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Webdocument{nokia-9210i-spec-02,
  key = 	 {NokiaComm},
  OPTauthor = 	 {},
  title = 	 {Nokia 9210i Communicator: Full Specifications},
  year = 	 {2002},
  url = 	 {http://www.nokia.com/phones/9210i/specifications.html},
  checked =      {24.7.2002},
  OPTannote = 	 {}

}

@Article{lederer-92,
  author = 	 {A. L. Lederer and J. Prasad},
  title = 	 {Nine Management Guidelines for Better Cost Estimating},
  journal = 	 {Communications of the ACM},
  year = 	 {1992},
  volume =	 {35},
  number =	 {2},
  pages =	 {51-59}
}

@InProceedings{lyardet-99,
  author = 	 {F. Lyardet and G. Rossi and D. Schwabe},
  title = 	 {Patterns for Adding Search Capabilities to Web Information Systems},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. European Conference on Pattern Languages of Programs (EuroPloP'99)},
  OPTpages = 	 {},
  year = 	 {1999},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Bad Irsee, Germany},
  month = 	 jul,
  OPTorganization = {},
  OPTpublisher = {(Onko ilmestynyt?)},
  note = 	 {},
  OPTannote = 	 {}
}


@Book{baddeley-86,
  author = 	 {A. D. Baddeley},
  ALTeditor = 	 {},
  title = 	 {Working Memory},
  publisher = 	 {Oxford University Press},
  year = 	 {1986},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  number = 	 {11},
  series = 	 {Oxford psychology series},
  address = 	 {},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Unpublished{majuri-00,
  author = 	 {M. Majuri and K.-P. Laakso and A. Saura},
  title = 	 {Helsingin yliopisto, WWW-sivujen (www.helsinki.fi) käyttäjäryhmät ja käyttötapaukset},
  note = 	 {Julkaisematon raportti, Interacta Design Oy},
  year = 	 {2000},
}

@Article{markkanen-02,
  omit_date = {yes},
  author = 	 {K. Markkanen},
  title = 	 {Puolet nuorista etsii kodin internetistä},
  journal = 	 {Helsingin Sanomat 14.7.2002},
  year = 	 {2002},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  pages = 	 {A6},
  OPTmonth = 	 {},
  note = 	 {},
  OPTannote = 	 {}
}


@Book{card-99,
  ALTauthor = 	 {},
  editor = 	 {S. K. Card and J. D. MacKinlay and B. Schneiderman},
  title = 	 {Readings in Information Visualization: Using Vision to Think},
  publisher = 	 {Morgan Kaufmann},
  year = 	 {1999},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {San Francisco, USA},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}


@Webarticle{stt-verkkotunnukset-03,
  omit_date = {yes},
  key = 	 {STT},
  OPTauthor =       {Suomen Tietotoimisto},
  title = 	 {Kotimaisten verkkotunnusten sääntely höllenee},
  site =         {Helsingin Sanomat, verkkoliite, 19.4.2003},
  month = 	 apr,
  year = 	 {2003},
  url =          {http://www.helsinginsanomat.fi/arkisto/juttu.asp?id=20030421OL7},
  checked =      {20.4.2003},
  note = 	 {Lähde: Suomen Tietotoimisto},
  OPTannote = 	 {}
}

@Webreport{netcraft-03,
  key = 	 {Netcraft},
  OPTauthor = 	 {},
  title = 	 {Netcraft Web Server Survey},
  organization = {Netcraft},
  month = 	 jan,
  year = 	 {2003},
  url = 	 {http://www.netcraft.com/Survey/Reports/0301/},
  checked =      {26.2.2003},
  OPTannote = 	 {}
}

@Article{miller-56,
  author = 	 {G. A. Miller},
  title = 	 {The magical number seven, plus or minus two: Some limits for our capacity for processing information},
  journal = 	 {Psychological Review},
  year = 	 {1956},
  OPTkey = 	 {},
  volume = 	 {63},
  OPTnumber = 	 {},
  pages = 	 {81--97},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@InProceedings{miller-68,
  author = 	 {R. B. Miller},
  title = 	 {Response time in man-computer conversational transactions},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. Fall Joint Computer Conference},
  pages = 	 {267--277},
  year = 	 {1968},
  OPTeditor = 	 {},
  volume = 	 {33},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  OPTaddress = 	 {},
  OPTmonth = 	 {},
  organization = {AFIPS},
  OPTpublisher = {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Webarticle{nielsen-employee-search-03,
  author = 	 {J. Nielsen},
  title = 	 {Employee Directory Search: Resolving Conflicting Usability Guidelines},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 feb,
  year = 	 {2003},
  url =          {http://www.useit.com/alertbox/20030224.html},
  checked =      {25.2.2003},
  note = 	 {},
  OPTannote = 	 {}
}

@Webarticle{nielsen-sitemap-02,
  author = 	 {J. Nielsen},
  title = 	 {Site Map Usability},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 jan,
  year = 	 {2002},
  url =          {http://www.useit.com/alertbox/20020106.html},
  checked =      {19.7.2002},
  note = 	 {},
  OPTannote = 	 {}
}

@Webarticle{nielsen-utility-02,
  author = 	 {J. Nielsen},
  title = 	 {Readers's Comments on WAP Backlash},
  site =         {Sidebar to Jakob Nielsen's Alertbox},
  month = 	 jul,
  year = 	 {2000},
  url =          {http://www.useit.com/alertbox/20000709_comments.html},
  checked =      {4.10.2002},
  note = 	 {},
  OPTannote = 	 {}
}

@Webarticle{nielsen-personalization-98,
  author = 	 {J. Nielsen},
  title = 	 {Personazation is Over-Rated},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 oct,
  year = 	 {1998},
  url =          {http://www.useit.com/alertbox/981004.html},
  checked =      {4.10.2002},
  note = 	 {},
  OPTannote = 	 {}
}

@Webarticle{nielsen-navigation-00,
  author = 	 {J. Nielsen},
  title = 	 {Is Navigation Useful?},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 jan,
  year = 	 {2000},
  url =          {http://www.useit.com/alertbox/20000109.html},
  checked =      {15.7.2002},
  note = 	 {},
  OPTannote = 	 {}
}

@Webarticle{nielsen-02,
  author = 	 {J. Nielsen},
  title = 	 {Reduce Redundancy: Decrease Duplicated Design Decisions},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 jun,
  year = 	 {2002},
  url =          {http://www.useit.com/alertbox/20020609.html},
  checked =      {28.6.2002},
  note = 	 {},
  OPTannote = 	 {}
}

@Webarticle{nielsen-dropdown-00,
  author = 	 {J. Nielsen},
  title = 	 {Drop-Down Menus: Use Sparingly},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 nov,
  year = 	 {2000},
  url =          {http://www.useit.com/alertbox/20001112.html},
  checked =      {15.7.2002},
  note = 	 {},
  OPTannote = 	 {}
}

@Webarticle{nielsen-printandweb-99,
  author = 	 {J. Nielsen},
  title = 	 {Differences Between Print and Web Design},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 jan,
  year = 	 {1999},
  url =          {http://www.useit.com/alertbox/990124.html},
  checked =      {29.1.2003},
  note = 	 {},
  OPTannote = 	 {}
}
@Webarticle{nielsen-dataquality-98,
  author = 	 {J. Nielsen},
  title = 	 {Impact of Data Quality on the Web User Experience},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 jul,
  year = 	 {1998},
  url =          {http://www.useit.com/alertbox/980712.html},
  checked =      {29.1.2003},
  note = 	 {},
  OPTannote = 	 {}
}

@Webarticle{nielsen-newmistakes-99,
  author = 	 {J. Nielsen},
  title = 	 {Top-10 New Mistakes of Web Design},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 may,
  year = 	 {1999},
  url =          {http://www.useit.com/alertbox/990530.html},
  checked =      {18.2.2003},
  note = 	 {},
  OPTannote = 	 {}
}

@Webarticle{nielsen-deeplinking-02,
  author = 	 {J. Nielsen},
  title = 	 {Deep Linking is Good Linking},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 mar,
  year = 	 {2002},
  url =          {http://www.useit.com/alertbox/20020303.html},
  checked =      {19.2.2003},
  note = 	 {},
  OPTannote = 	 {}
}

@Webarticle{nielsen-linkrot-98,
  author = 	 {J. Nielsen},
  title = 	 {Fighting Linkrot},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 jun,
  year = 	 {1998},
  url =          {http://www.useit.com/alertbox/980614.html},
  checked =      {19.2.2003},
  note = 	 {},
  OPTannote = 	 {}
}

@misc{modjeska-97,
  author = {D. Modjeska and A. Marsh},
  title = {Structure and Memorability of Web Sites},
  howpublished = {Working Paper in the Department of Industrial Engineering, University of Toronto.},
  year = {1997},
  note = {\url{http://citeseer.nj.nec.com/modjeska97structure.html} (4.6.2002)},
  url = "citeseer.nj.nec.com/modjeska97structure.html"}

@Webarticle{nielsen-98,
  author = 	 {J. Nielsen},
  title = 	 {Fighting Linkrot},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 jun,
  year = 	 {1998},
  url =          {http://www.useit.com/alertbox/980614.html},
  checked =      {9.7.2002},
  note = 	 {},
  OPTannote = 	 {}
}

@inproceedings{neerincx-01,
 author = {M. A. Neerincx and J. Lindenberg and S. Pemberton},
 title= {Support concepts for Web navigation: a cognitive engineering approach},
 booktitle = {Proc. of 10th International World Wide Wed Conference (WWW'01)},
 year = {2001},
 isbn = {1-58113-348-0},
 pages = {119--128},
 location = {Hong Kong, Hong Kong},
 doi = {http://doi.acm.org/10.1145/371920.371966},
 publisher = {ACM Press},
 annote = {The tenth international conference on World Wide Web}
 }

@inproceedings{newman-00,
 author = {M. W. Newman and J. A. Landay},
 title= {Sitemaps, storyboards, and specifications: a sketch of Web site design practice},
 booktitle = {Proc. of Symposium on Designing Interactive Systems (DIS'00)},
 year = {2000},
 isbn = {1-58113-219-0},
 pages = {263--274},
 location = {New York City, New York, United States},
 doi = {http://doi.acm.org/10.1145/347642.347758},
 publisher = {ACM Press},
 }

@Book{nielsen-00,
  author = 	 {J. Nielsen},
  ALTeditor = 	 {},
  title = 	 {Designing Web Usability},
  publisher = 	 {New Riders Publishing},
  year = 	 {2000},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Indianapolis, USA},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@InProceedings{nielsen-90,
  author = 	 {J. Nielsen and R. Molich},
  title = 	 {Heuristic evaluation of user interfaces},
  booktitle = 	 {Proc. of Conference on Human Factors in Computer Systems (CHI'90)},
  pages =	 {249--256},
  year =	 1990,
  address =	 {Seattle, WA, USA},
  organization = {ACM}
}

@Webarticle{nielsen-intranet-internet-97,
  OPTkey = 	 {},
  author = 	 {J. Nielsen},
  title = 	 {The Difference Between Intranet and Internet Design},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 sep,
  year = 	 {1997},
  url = 	 {http://www.useit.com/alertbox/9709b.html},
  checked =      {4.6.2002},
  OPTannote = 	 {}
}

@Webarticle{nielsen-01,
  OPTkey = 	 {},
  author = 	 {J. Nielsen},
  title = 	 {Did Poor Usability Kill E-Commerce?},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 aug,
  year = 	 {2001},
  url = 	 {http://www.useit.com/alertbox/20010819.html},
  checked =      {16.7.2002},
  OPTannote = 	 {}
}

@Webarticle{nielsen-portals-99,
  OPTkey = 	 {},
  author = 	 {J. Nielsen},
  title = 	 {Intranet Portals: The Corporate Information Infrastructure},
  site =         {Jakob Nielsen's Alertbox},
  month = 	 apr,
  year = 	 {1999},
  url = 	 {http://www.useit.com/alertbox/990404.html},
  checked =      {4.6.2002},
  OPTannote = 	 {}
}


@Book{nielsen-93,
  author = 	 {J. Nielsen},
  ALTeditor = 	 {},
  title = 	 {Usability Engineering},
  publisher = 	 {Academic Press},
  year = 	 {1993},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Lontoo},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Book{norman-88,
  author = 	 {D. A. Norman},
  ALTeditor = 	 {},
  title = 	 {Psychology of Everyday Things},
  publisher = 	 {Basic Books},
  year = 	 {1988},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {New York, USA},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@inproceedings{nuseibeh-00,
 author = {B. Nuseibeh and S. Easterbrook},
 title= {Requirements engineering: a roadmap},
 booktitle = {Proc. of the conference on The future of Software engineering},
 year = {2000},
 isbn = {1-58113-253-0},
 pages = {35--46},
 location = {Limerick, Ireland},
 doi = {http://doi.acm.org/10.1145/336512.336523},
 publisher = {ACM Press},
 }

@Misc{opm-tiedote-02,
  omit_date =    {yes},
  key =          {OPM},
  title = 	 {Internet on ehdoton ykkönen koulutusta koskevan tiedon lähteenä},
  OPThowpublished = {},
  OPTmonth = 	 mar,
  year = 	 {2002},
  note = 	 {Opetusministeriön lehdistötiedote 21.3.2002},
  OPTannote = 	 {}
}


@article{perkowitz-00,
 author = {M. Perkowitz and O. Etzioni},
 title= {Adaptive Web sites},
 journal = {Communications of the ACM},
 volume = {43},
 number = {8},
 year = {2000},
 issn = {0001-0782},
 pages = {152--158},
 doi = {http://doi.acm.org/10.1145/345124.345171},
 publisher = {ACM Press},
 }

@inproceedings{pirolli-00,
 author = {P. Pirolli and S. K. Card and M. M. Van Der Wege},
 title= {The effect of information scent on searching information: visualizations of large tree structures},
 booktitle = {Proceedings of the Working Conference on Advanced Visual Interfaces},
 year = {2000},
 isbn = {1-58113-252-2},
 pages = {161--172},
 location = {Palermo, Italy},
 doi = {http://doi.acm.org/10.1145/345513.345304},
 publisher = {ACM Press},
 }

@inproceedings{pirolli-97,
 author = {Peter Pirolli},
 title= {Computational models of information scent-following in a very large browsable text collection},
 booktitle = {Proc. of Conference on Human Factors in Computing Systems (CHI'97)},
 year = {1997},
 isbn = {0-89791-802-9},
 pages = {3--10},
 location = {Atlanta, Georgia, United States},
 doi = {http://doi.acm.org/10.1145/258549.258558},
 publisher = {ACM Press},
 }

@Misc{portaali-02,
  key = 	 {Portaali},
  author =       {},
  title = 	 {Verkkoviestintä ja -palvelut Helsingin yliopistossa, linjaukset vuosille 2003--2006},
  howpublished = {Helsingin yliopiston Portaalityöryhmän loppuraportti},
  month = 	 dec,
  year = 	 {2002},
  note = 	 {\url{http://erinys.it.helsinki.fi:8080/portaalihanke/dokumentit/loppuraportti.pdf} (19.3.2003)},
  OPTannote = 	 {}
}

@InProceedings{potts-95,
  author = 	 {C. Potts},
  title = 	 {Using Schematic Scenarios to Understand User Needs},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of Symposium on Designing Interactive Systems (DIS'95)},
  pages = 	 {247--256},
  year = 	 {1995},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Ann Arbor, MI, USA},
  OPTmonth = 	 {},
  organization = {ACM},
  OPTpublisher = {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}


@InProceedings{potts-97,
  author = 	 {C. Potts and W. C. Newstetter},
  title = 	 {Naturalistic inquiry and requirements engineering: reconciling their theoretical foundations},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of IEEE Symposium on Requirements Engineering},
  pages = 	 {118--127},
  year = 	 {1997},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Annapolis, MD, USA},
  month = 	 jan,
  OPTorganization = {},
  OPTpublisher = {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@InProceedings{potts-99,
  author = 	 {C. Potts},
  title = 	 {ScenIC: a strategy for inquiry-driven requirements determination},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of IEEE International Symposium on Requirements Engineering},
  pages = 	 {58--65},
  year = 	 {1999},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Limerick, Ireland},
  month = 	 jun,
  OPTorganization = {},
  OPTpublisher = {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}


@inproceedings{rohn-02,
 author = {J. A. Rohn and J. Spool and M. Ektare and S. Koyani and M. Muller and J. Redish},
 title= {Usability in practice: alternatives to formative evaluations-evolution and revolution},
 booktitle = {Extended Abstracts of Conference on Human Factors in Computer Systems},
 year = {2002},
 isbn = {1-58113-454-1},
 pages = {891--897},
 location = {Minneapolis, Minnesota, USA},
 doi = {http://doi.acm.org/10.1145/506443.506648},
 publisher = {ACM Press},
 }

@Book{rosenfeld-98,
  author = 	 {L. Rosenfeld and P. Morville},
  ALTeditor = 	 {},
  title = 	 {Information Architecture for the World Wide Web},
  publisher = 	 {O'Reilly},
  year = 	 {1998},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {USA},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@inproceedings{rossi-00,
 author = {G. Rossi and D. Schwabe and F. Lyardet},
 title= {User interface patterns for hypermedia applications},
 booktitle = {Proceedings of the Working Conference on Advanced Visual Interfaces},
 year = {2000},
 isbn = {1-58113-252-2},
 pages = {136--142},
 location = {Palermo, Italy},
 doi = {http://doi.acm.org/10.1145/345513.345288},
 publisher = {ACM Press},
 }


@InProceedings{rossi-98,
  author = 	 {G. Rossi and D. Schwabe and F. Lyardet},
  title = 	 {Patterns for Designing Navigable Information Spaces},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. Pattern Languages of Programming (PLoP'98)},
  OPTpages = 	 {},
  year = 	 {1998},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Monticello, USA},
  OPTmonth = 	 {},
  OPTorganization = {},
  publisher = {Washington University},
  note = 	 {Tech Report TR\#WUCS-98-25},
  OPTannote = 	 {},
  url = "citeseer.nj.nec.com/rossi99patterns.html" }

@Article{rossi-99,
  author = 	 {G. Rossi and D. Schwabe and F. Lyardet},
  title = 	 {Improving Web Information Systems with Navigational Patterns},
  journal = 	 {Computer Networks},
  year = 	 {1999},
  OPTkey = 	 {},
  volume = 	 {vol. 31, issue 11-16},
  OPTnumber = 	 {},
  pages = 	 {1667--1678},
  month = 	 may,
  publisher = 	 {Elsevier Science B.V.},
  OPTannote = 	 {}
}


@InBook{rossi-99b,
  ALTauthor = 	 {},
  editor = 	 {N. Harrison and B. Foote and H. Rohnert},
  title = 	 {Pattern Languages of Program Design 4},
  chapter = 	 {7. Patterns for Human-Computer Interaction},
note = {Ensimmäinen aliluku: G. Rossi et al. Patterns for Designing Navigable Information Spaces, Addison-Wesley, 1999},
  publisher = 	 {Addison-Wesley},
  year = 	 {1999},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  OPTtype = 	 {},
  OPTaddress = 	 {},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTpages = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@InProceedings{rossi-europlop-01,
  author = 	 {G. Rossi and F. Lyardet and D. Schwabe},
  title = 	 {Patterns for E-commerce applications},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle =    {Proc. European Conference on Pattern Languages of Programs (EuroPloP'01)},
  OPTpages = 	 {},
  year = 	 {2001},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Irsee, Germany},
  month = 	 jul,
  OPTorganization = {},
  publisher =    {UKV Verlag Kontanz},
  note = 	 {},
  OPTannote = 	 {}
}

@Article{debra-98,
  author = 	 {P. {De~Bra} and L. Calvi},
  title = 	 {AHA! An open Adaptive Hypermedia Architecture},
  journal = 	 {The New Review of Hypermedia and Multimedia},
  year = 	 {1998},
  OPTkey = 	 {},
  volume = 	 {vol. 4},
  OPTnumber = 	 {},
  pages = 	 {115--139},
  OPTmonth = 	 {},
  note = 	 {Taylor Graham Publishers},
  OPTannote = 	 {}
}

@InProceedings{weber-97,
  author = 	 {G. Weber and M. Specht},
  title = 	 {User Modeling and Adaptive Navigation Support in WWW-based Tutoring Systems},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. 6th International Conference on User Modeling (UM'97)},
  pages = 	 {289--300},
  year = 	 {1997},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Chia Laguna, Sardinia, Italia},
  month = 	 jun,
  OPTorganization = {},
  publisher = {Springer Wien New York},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@InProceedings{brusilovsky-98,
  author = 	 {P. Brusilovsky and J. Eklund and E. Schwarz},
  title = 	 {Web-based Education for all: A tool for developing adaptive courseware},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. 7th International World Wide Web Conference},
  pages = 	 {291--300},
  year = 	 {1998},
  OPTeditor = 	 {},
  volume = 	 {30, issue 1-7},
  OPTnumber = 	 {},
  series = 	 {Computer Networks and ISDN Systems},
  OPTaddress = 	 {},
  OPTmonth = 	 {},
  OPTorganization = {},
  publisher = {Elsevier},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@inproceedings{rossi-www-01,
 author = {G. Rossi and D. Schwabe and R. Guimarães},
 title= {Designing personalized web applications},
 booktitle = {Proc. of 10th International World Wide Web Conference (WWW'01)},
 year = {2001},
 isbn = {1-58113-348-0},
 pages = {275--284},
 location = {Hong Kong, Hong Kong},
 doi = {http://doi.acm.org/10.1145/371920.372069},
 publisher = {ACM Press}
 }

@inproceedings{rubens-00,
 author = {B. Rubens},
 title= {Reaction of Computer Savyy Users to Information on the Intranet},
 booktitle = {Proc. of IEEE International Professional Communication Conference (IPCC/SIGDOC'00)},
 year = {2000},
 isbn = {0-7803-6431-7},
 pages = {191--196},
 location = {Cambridge, Massachusetts},
 publisher = {IEEE Educational Activities Department}
 }

@InProceedings{rubens-99,
  author = 	 {B. Rubens},
  title = 	 {Designing Web Sites for the Intranet},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of International Professional Communication Conference (IPCC'99)},
  pages = 	 {267--274},
  year = 	 {1999},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {New Orleans, NA, USA},
  month = 	 sep,
  OPTorganization = {},
  publisher = {IEEE International},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@inproceedings{ruthford-00,
 author = {M. A. Ruthford and J. A. Ramey},
 title= {The design response to usability test findings: a case study based on artifacts and interviews},
 booktitle = {Proc. of IEEE International Professional Communication Conference (IPCC/SIGDOC'00)},
 year = {2000},
 isbn = {0-7803-6431-7},
 pages = {315--323},
 location = {Cambridge, Massachusetts},
 publisher = {IEEE Educational Activities Department}
 }


@Unpublished{saura-00,
  author = 	 {A. Saura and S. A. Laakso},
  title = 	 {Helsingin yliopiston WWW-sivut (www.helsinki.fi), Käytettävyystestaus},
  note = 	 {Julkaisematon raportti, Interacta Design Oy},
  year = 	 {2000}
}

@Webdocument{tiedotus-sivupohjat-99,
  key = 	 {Tiedotus},
  organization = {Helsingin yliopiston tiedotus},
  title = 	 {Sivupohjat},
  url =          {http://www.helsinki.fi/tiedotus/pohjat/},
  checked =      {1.7.2002}, 
  year = 	 {1999},
  note = {},
  OPTannote = 	 {}
}

@Webdocument{reksel-03,
  key = 	 {Reksel},
  organization = {Helsingin yliopisto},
  title = 	 {Helsingin yliopiston osaamistietokannat, rekisteriselosteet},
  url =          {http://rontti.helsinki.fi/trip/tuhti/reksel/reksel.htm},
  checked =      {25.2.2003}, 
  year = 	 {2003},
  note = {},
  OPTannote = 	 {}
}

@inproceedings{schwabe-96,
 author = {D. Schwabe and G. Rossi and S. D. J. Barbosa},
 title= {Systematic hypermedia application design with OOHDM},
 booktitle = {Proceedings of the the seventh ACM conference on Hypertext},
 year = {1996},
 isbn = {0-89791-778-2},
 pages = {116--128},
 location = {Bethesda, Maryland, United States},
 doi = {http://doi.acm.org/10.1145/234828.234840},
 publisher = {ACM Press},
 }

@Book{swebok-01,
  editor = 	 {A. Abran and J. W. Moore and P. Bourque and R. Dupuis},
  title = 	 {SWEBOK, A Guide to the Software Engineering Body of Knowledge, Trial version},
  publisher = 	 {IEEE Computer Society},
  year = 	 {2001},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Los Alamitos, California, USA},
  OPTedition = 	 {},
  month = 	 may,
  note = 	 {\url{http://www.swebok.org/}},
  OPTannote = 	 {}
}

@Article{troyer-98,
  author = 	 {O. De Troyer and C. J. Leune},
  title = 	 {WSDM: A User-Centered Design Method for Web Sites},
  journal = 	 {Computer Networks and ISDN Systems},
  year = 	 {1998},
  OPTkey = 	 {},
  volume = 	 {30},
  OPTnumber = 	 {},
  pages = 	 {85--94},
  month = 	 apr,
  OPTnote = 	 {},
  OPTannote = 	 {Issues 1-7}
}

@InProceedings{udo-00,
  author = 	 {G. J. Udo and G. P. Marquis},
  title = 	 {Effective Commercial Web Site Design: An Empitical Study},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of Engineering Management Society, 2000},
  pages = 	 {313--318},
  year = 	 {2000},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Albequerque, NM, USA},
  month = 	 aug,
  OPTorganization = {},
  publisher = {IEEE},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Webdocument{vvjohtoryhma-99,
  key = 	 {VVJryhmä},
  organization = {Helsingin yliopiston verkkoviestinnän johtoryhmä},
  title = 	 {Verkkoviestinnän suosituksia Helsingin yliopiston yksiköille},
  url =          {http://www.helsinki.fi/tiedotus/wwwsuositukset.html},
  checked =      {1.7.2002},
  month = 	 oct,
  year = 	 {1999},
  note = 	 {},
}

@Book{verkko-opas-02,
  author = 	 {R. Hukkanen and R. Saarela and M. Alatalo},
  ALTeditor = 	 {},
  title = 	 {Helsingin yliopiston verkkoviestinnän opas},
  publisher = 	 {Yliopistopaino},
  year = 	 {2002},
  OPTkey = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Helsinki},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  note =
  {\url{http://www.helsinki.fi/tiedotus/www-psd/www_opas.pdf} (1.7.2002)},
  OPTannote = 	 {}
}
@InProceedings{viller-99,
  author = 	 {S. Viller and I. Sommerville},
  title = 	 {Social analysis in the requirements engineering process: from ethnography to method},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of IEEE International Symposium on Requirements Engineering},
  pages = 	 {6--13},
  year = 	 {1999},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Limerick, Ireland},
  month = 	 jun,
  OPTorganization = {},
  OPTpublisher = {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@InProceedings{warren-01,
  author = 	 {P Warren},
  title = 	 {Why They \textit{Still} Cannot Use Their Library Catalogues},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proceedings of Informing Science Conference},
  pages = 	 {542--546},
  year = 	 {2001},
  editor = 	 {Alka Harriger},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Krakova, Puola},
  month = 	 {},
  OPTorganization = {},
  publisher = {},
  issn = {1535-0703},
  note = 	 {\url{http://ecommerce.lebow.drexel.edu/eli/pdf/WarrenEBKWhy.pdf}},
  OPTannote = 	 {}
}

@inproceedings{wixon-02,
 author = {D. R. Wixon and J. Ramey and K. Holtzblatt and H. Beyer and J. Hackos and S. Rosenbaum and C. Page and S. A. Laakso and K.-P. Laakso},
 title= {Usability in practice: field methods evolution and revolution},
 booktitle = {Extended Abstracts of Conference on Human Factors in Computer Systems},
 year = {2002},
 isbn = {1-58113-454-1},
 pages = {880--884},
 location = {Minneapolis, Minnesota, USA},
 doi = {http://doi.acm.org/10.1145/506443.506646},
 publisher = {ACM Press},
 }

@InCollection{wood-96,
  author = 	 {L. E. Wood},
  title = 	 {The Ethnographic interview in user-centered work/task analysis},
  booktitle = 	 {Field Methods Casebook for Software Design},
  OPTcrossref =  {},
  OPTkey = 	 {},
  pages = 	 {35--56},
  publisher = {John Wiley \& Sons},
  year = 	 {1996},
  editor = 	 {D. Wixon and J. Ramey},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  OPTtype = 	 {},
  OPTchapter = 	 {},
  address = 	 {New York, USA},
  OPTedition = 	 {},
  OPTmonth = 	 {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@Webdocument{www-ohjeisto-99,
  key = 	 {Tiedotus},
  organization = {Helsingin yliopiston tiedotuksen www-toimitus},
  title = 	 {Helsingin yliopiston www-sivujen graafinen ohjeisto},
  url =          {http://www.helsinki.fi/tiedotus/verkko-ohjeisto.pdf},
  checked =      {1.7.2002},
  year = 	 {1999},
  note =         {},
  OPTannote = 	 {}
}

@Webdocument{thk-00,
  key = 	 {THK},
  organization = {Viestintävirasto},
  title = 	 {Määräys Internet-tietoverkon suomalaisista verkkotunnuksista},
  url =          {http://www.ficora.fi/suomi/document/THK34A2000M.pdf},
  checked =      {27.2.2003},
  month = 	 jun,
  year = 	 {2000},
  note = 	 {Standardiluettelon numero THK 34 A/2000 M},
  OPTannote = 	 {}
}

@InProceedings{xu-01,
  author = 	 {G. Xu and A. Cockburn and B. McKenzie},
  title = 	 {Lost on the Web: An Introduction to Web Navigation Research},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of 4th New Zealand Computer Science Research Student's Conference (NZCSRSC-01)},
  OPTpages = 	 {},
  year = 	 {2001},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Christchurch, New Zealand},
  month = 	 apr,
  OPTorganization = {},
  OPTpublisher = {},
  note = 	 {\url{http://www.cosc.canterbury.ac.nz/ACMchapter/NZCSPG/papers/sxu11@cosc.canterbury.ac.nz.pdf}},
  annote = 	 {Organized by Univ. of Canterbury ACM Student Chapter and department of Computer Science}
}

@InProceedings{zhang-00,
  author = 	 {X. Zhang and K. B. Keeling and R. J. Pavur},
  title = 	 {Information Quality of Commercial Web Site Home Pages: An Explorative Analysis},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of Annual International Conference on Computer and Information Science (ICIS'00)},
  pages = 	 {164--175},
  year = 	 {2000},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Brisbane, Queensland, Australia},
  month = 	 dec,
  organization = {AIS},
  OPTpublisher = {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@InProceedings{zimmerman-00,
  author = 	 {D. Zimmerman and P. Walls},
  title = 	 {Exploring Navigational Patterns on the Web},
  booktitle = {Proc. of International Professional Communication Conference (IPCC/SIGDOC'00)},
  pages = 	 {581--591},
  year = 	 {2000},
  address = 	 {Cambridge, MA, USA},
  publisher = {IEEE Educational Activities Department}
}

@InProceedings{zimmerman-01,
  author = 	 {D. Zimmerman and M. Slater and P. Kendall},
  title = 	 {Risk Communication and Usability Case Study: Implications for Web Site Design},
  OPTcrossref =  {},
  OPTkey = 	 {},
  booktitle = {Proc. of International Professional Communication Conference (IPCC'01)},
  pages = 	 {445--452},
  year = 	 {2001},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Santa Fe, New Mexico, USA},
  month = 	 oct,
  organization = {IEEE},
  OPTpublisher = {},
  OPTnote = 	 {},
  OPTannote = 	 {}
}

@InProceedings{zimmerman-97,
  author = 	 {B. B. Zimmerman},
  title = 	 {Applying Tufte's Priciples of Information Design to Creating Effective Web Sites},
  booktitle = {Proc. of 15th annual conference on Computer documentation (SIGDOC'97)},
  pages = 	 {309--317},
  year = 	 {1997},
  OPTeditor = 	 {},
  OPTvolume = 	 {},
  OPTnumber = 	 {},
  OPTseries = 	 {},
  address = 	 {Salt Lake City, Utah, USA},
  OPTmonth = 	 {},
  OPTorganization = {},
  publisher = {ACM Press},
  OPTnote = 	 {},
  OPTannote = 	 {}
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