Principles of Knowledge Representation and Reasoning: Proceedings of the Ninth International Conference (KR2004), Whistler, Canada, June 2-5, 2004

Didier Dubois Christopher A. Welty Mary-Anne Williams Principles of Knowledge Representation and Reasoning: Proceedings of the Ninth International Conference (KR2004), Whistler, Canada, June 2-5, 2004 KR AAAI Press 2004 1-57735-199-1 db/conf/kr/kr2004.html