A. Ashkan, и C. Clarke. CIKM '09: Proceeding of the 18th ACM conference on Information and knowledge management, стр. 67--76. New York, NY, USA, ACM, (2009)
A. Fuxman, P. Tsaparas, K. Achan, и R. Agrawal. WWW '08: Proceeding of the 17th international conference on World Wide Web, стр. 61--70. New York, NY, USA, ACM, (2008)
R. Jones, B. Rey, O. Madani, и W. Greiner. WWW '06: Proceedings of the 15th international conference on World Wide Web, стр. 387--396. New York, NY, USA, ACM, (2006)