R. Fagin, R. Kumar, и D. Sivakumar. SODA '03: Proceedings of the fourteenth annual ACM-SIAM symposium on Discrete algorithms, стр. 28--36. Philadelphia, PA, USA, Society for Industrial and Applied Mathematics, (2003)
J. Freyne, R. Farzan, P. Brusilovsky, B. Smyth, и M. Coyle. IUI '07: Proceedings of the 12th international conference on Intelligent user interfaces, стр. 52--61. New York, NY, USA, ACM Press, (2007)
M. Halvey, и M. Keane. WWW '07: Proceedings of the 16th international conference on World Wide Web, стр. 1273--1274. New York, NY, USA, ACM Press, (2007)
A. Hotho, R. Jäschke, C. Schmitz, и G. Stumme. The Semantic Web: Research and Applications, том 4011 из LNAI, стр. 411-426. Heidelberg, Springer, (2006)
A. Hotho, R. Jäschke, C. Schmitz, и G. Stumme. Proc. First International Conference on Semantics And Digital Media Technology (SAMT), том 4306 из LNCS, стр. 56-70. Heidelberg, Springer, (2006)
T. Joachims, L. Granka, B. Pan, H. Hembrooke, и G. Gay. SIGIR '05: Proceedings of the 28th annual international ACM SIGIR conference on Research and development in information retrieval, стр. 154--161. New York, NY, USA, ACM Press, (2005)