S. Cohen, C. Domshlak, and N. Zwerdling. WWW '07: Proceedings of the 16th international conference on World Wide Web, page 1183--1184. New York, NY, USA, ACM, (2007)
C. McNaught, P. Lam, S. Leung, and K. Cheng. WEBIST (Selected Papers), volume 8 of Lecture Notes in Business Information Processing, page 292-303. Springer, (2007)
D. Carmel, Y. Maarek, M. Mandelbrod, Y. Mass, and A. Soffer. Proceedings of the 26th Annual International ACM SIGIR Conference on Research and Development in Informaion Retrieval, page 151-158. ACM Press, (2003)