P. Ferragina, and A. Gulli. WWW '05: Special interest tracks and posters of the 14th international conference on World Wide Web, page 801--810. New York, NY, USA, ACM Press, (2005)
P. Brusilovsky, R. Farzan, and J. Ahn. JCDL '05: Proceedings of the 5th ACM/IEEE-CS joint conference on Digital libraries, page 9--18. New York, NY, USA, ACM, (2005)
N. Kaplan, and Y. Chisik. JCDL '05: Proceedings of the 5th ACM/IEEE-CS joint conference on Digital libraries, page 235--243. New York, NY, USA, ACM Press, (2005)
R. Torres, S. Mcnee, M. Abel, J. Konstan, and J. Riedl. International Conference on Digital Libraries,Proceedings of the 4th ACM/IEEE-CS joint conference on Digital libraries, (2004)
P. Mulholland, T. Collins, and Z. Zdrahal. HYPERTEXT '05: Proceedings of the sixteenth ACM conference on Hypertext and hypermedia, page 23--31. New York, NY, USA, ACM Press, (2005)
G. Golovchinsky, M. Price, and B. Schilit. SIGIR '99: Proceedings of the 22nd annual international ACM SIGIR conference on Research and development in information retrieval, page 19--25. New York, NY, USA, ACM Press, (1999)
C. Marshall, and S. Bly. JCDL '04: Proceedings of the 4th ACM/IEEE-CS joint conference on Digital libraries, page 218--227. New York, NY, USA, ACM Press, (2004)
J. Klerkx, E. Duval, and M. Meire. IV '04: Proceedings of the Information Visualisation, Eighth International Conference on (IV'04), page 465--470. Washington, DC, USA, IEEE Computer Society, (2004)
G\%c3\%b3mez, Bautista, and Carrillo. 8th IEEE International Conference on Advanced Learning Technologies, ICALT 2008, 0, page 693--695. Los Alamitos, CA, USA, IEEE Computer Society, (2008)
C. Wang, Y. Zhang, and F. Zhang. 2007 First IEEE International Symposium on Information Technologies and Applications in Education, page 238--243. IEEE, (November 2007)
P. Ferragina, and A. Gulli. WWW '05: Special interest tracks and posters of the 14th international conference on World Wide Web, page 801--810. New York, NY, USA, ACM Press, (2005)
P. Brusilovsky, R. Farzan, and J. Ahn. JCDL '05: Proceedings of the 5th ACM/IEEE-CS joint conference on Digital libraries, page 9--18. New York, NY, USA, ACM Press, (2005)
N. Kaplan, and Y. Chisik. JCDL '05: Proceedings of the 5th ACM/IEEE-CS joint conference on Digital libraries, page 235--243. New York, NY, USA, ACM Press, (2005)
R. Torres, S. Mcnee, M. Abel, J. Konstan, and J. Riedl. International Conference on Digital Libraries,Proceedings of the 4th ACM/IEEE-CS joint conference on Digital libraries, (2004)
P. Mulholland, T. Collins, and Z. Zdrahal. HYPERTEXT '05: Proceedings of the sixteenth ACM conference on Hypertext and hypermedia, page 23--31. New York, NY, USA, ACM Press, (2005)
G. Golovchinsky, M. Price, and B. Schilit. SIGIR '99: Proceedings of the 22nd annual international ACM SIGIR conference on Research and development in information retrieval, page 19--25. New York, NY, USA, ACM Press, (1999)
C. Marshall, and S. Bly. JCDL '04: Proceedings of the 4th ACM/IEEE-CS joint conference on Digital libraries, page 218--227. New York, NY, USA, ACM Press, (2004)
J. Klerkx, E. Duval, and M. Meire. IV '04: Proceedings of the Information Visualisation, Eighth International Conference on (IV'04), page 465--470. Washington, DC, USA, IEEE Computer Society, (2004)
G\%c3\%b3mez, Bautista, and Carrillo. 8th IEEE International Conference on Advanced Learning Technologies, ICALT 2008, 0, page 693--695. Los Alamitos, CA, USA, IEEE Computer Society, (2008)
T. Ishikawa, P. Klaisubun, M. Honma, and Z. Qian. WI-IATW '06: Proceedings of the 2006 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology (WI-IAT 2006 Workshops)(WI-IATW'06), page 192--195. Washington, DC, USA, IEEE Computer Society, (2006)
T. Ishikawa, P. Klaisubun, M. Honma, and Z. Qian. WI-IATW '06: Proceedings of the 2006 IEEE/WIC/ACM International Conference on Web Intelligence and Intelligent Agent Technology (WI-IAT 2006 Workshops)(WI-IATW'06), page 192--195. Washington, DC, USA, IEEE Computer Society, (2006)