K. Dellschaft, and S. Staab. In Proceedings of the 5th International Semantic Web Conference (ISWC2006), volume 4273 of LNCS, Athens, GA, USA, (November 2006)
B. Larsen, and C. Aone. KDD '99: Proceedings of the fifth ACM SIGKDD international conference on Knowledge discovery and data mining, page 16--22. New York, NY, USA, ACM Press, (1999)
T. Eliassi-Rad, and T. Critchlow. SAC '05: Proceedings of the 2005 ACM symposium on Applied computing, page 511--518. New York, NY, USA, ACM Press, (2005)
Y. Zhao, and G. Karypis. CIKM '02: Proceedings of the eleventh international conference on Information and knowledge management, page 515--524. New York, NY, USA, ACM Press, (2002)