U. Shah, T. Finin, и A. Joshi. CIKM '02: Proceedings of the eleventh international conference on Information and knowledge management, стр. 461--468. New York, NY, USA, ACM Press, (2002)
A. Gangemi, N. Guarino, C. Masolo, A. Oltramari, и L. Schneider. Knowledge Engineering and Knowledge Management: Ontologies and the Semantic Web, том 2473 из Lecture Notes in Artificial Intelligence, Springer, Berlin, (2002)
M. Paolucci, T. Kawamura, T. Payne, и K. Sycara. The Semantic Web -- ISWC 2002: First International Semantic Web Conference, Sardinia, Italy, том 2342 из Lecture Notes in Computer Science, Springer, Berlin, (2002)