P. Chesnais, M. Mucklo, and J. Sheena. Proceedings of the IEEE Second International Workshop on Community Networking Integrating Multimedia Services to the Home, page 275--282. (1995)
E. Gabrilovich, S. Dumais, and E. Horvitz. WWW '04: Proceedings of the 13th international conference on World Wide Web, page 482--490. New York, NY, USA, ACM Press, (2004)