K. Liu, B. Fang, и W. Zhang. Proceedings of the 19th ACM International Conference on Information and Knowledge Management, стр. 1109--1118. New York, NY, USA, ACM, (2010)
T. Rattenbury, N. Good, и M. Naaman. SIGIR '07: Proceedings of the 30th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, стр. 103--110. New York, NY, USA, ACM Press, (2007)
P. Turney. ACL-44: Proceedings of the 21st International Conference on Computational Linguistics and the 44th annual meeting of the Association for Computational Linguistics, стр. 313--320. Morristown, NJ, USA, Association for Computational Linguistics, (2006)