F. Radlinski, и S. Dumais. SIGIR '06: Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval, стр. 691--692. New York, NY, USA, ACM, (2006)
E. Agichtein, E. Brill, и S. Dumais. SIGIR '06: Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval, стр. 19--26. New York, NY, USA, ACM Press, (2006)