user- Third Workshop on Intelligent Techniques for Web Personalization ITWP '05. At Nineteenth International Joint Conference on Artificial Intelligence, (2005)
- Workshop on Social Navigation and Community-Based Adaptation Technologies at AH'2006, NCI, (2006)
- User Modeling and User-Adapted Interaction 13(3):213--267 (August 2003)
- J. Educ. Resour. Comput. (September 2005)
- Applied Intelligence 22(2):83--92 (March 2005)
- ICLS '06: Proceedings of the 7th international conference on Learning sciences, page 785--791. International Society of the Learning Sciences, (2006)
- Expert Syst. Appl. 33(1):6--22 (July 2007)
- CLIHC '05: Proceedings of the 2005 Latin American conference on Human-computer interaction, page 289--294. New York, NY, USA, ACM Press, (2005)
- WWW Alt. '04: Proceedings of the 13th international World Wide Web conference on Alternate track papers \& posters, page 104--113. New York, NY, USA, ACM Press, (2004)
- ITiCSE '04: Proceedings of the 9th annual SIGCSE conference on Innovation and technology in computer science education, page 27--31. New York, NY, USA, ACM Press, (2004)
- J. Comput. Small Coll. 21(3):91--96 (February 2006)
- Interacting with Computers 16(2):163--181 (April 2004)
- Comput. Educ. 49(4):1308--1320 (December 2007)
- HT '07: Proceedings of the 18th conference on Hypertext and hypermedia, page 57--66. New York, NY, USA, ACM, (2007)
- New Review in Hypermedia and Multimedia 13(2):163--185 (January 2007)
- 8th IEEE International Conference on Advanced Learning Technologies, ICALT 2008, 0, page 693--695. Los Alamitos, CA, USA, IEEE Computer Society, (2008)
- International Journal on E-Learning 7(3):363--381 (2008)
- IEEE Transactions on Learning Technologies 1(4):215--228 (2008)
- HT '09: Proceedings of the 20th ACM conference on Hypertext and hypermedia, page 51--56. New York, NY, USA, ACM, (2009)
