J. Tang, J. Zhang, L. Yao, J. Li, L. Zhang, and Z. Su. Proceedings of the 14th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, page 990--998. New York, NY, USA, ACM, (2008)
S. Bloehdorn, O. Görlitz, S. Schenk, and M. Völkel. Proceedings of the 6th International Conference on Knowledge Management (I-KNOW 06), Graz, Austria, (September 2006)
S. Ries, J. Kangasharju, and M. Mühlhäuser. On the Move to Meaningful Internet Systems 2006: OTM 2006 Workshops, volume 4277 of Lecture Notes in Computer Science, page 894--903. Berlin/Heidelberg, Springer, (2006)
S. Ferré, and O. Ridoux. Proceedings of the 9th International Conference on Conceptual Structures, volume 2120 of Lecture Notes in Artificial Intelligence, page 187-201. Springer, (2001)
D. Gifford, P. Jouvelot, M. Sheldon, and J. O'Toole. Proceedings of the 13th ACM Symposium on Operating Systems Principles, 25, page 16-25. Pacific Grove, California, United States, ACM Press, (1991)