Norman Y. Foo, Maurice Pagnucco, Abhaya C. Nayak. Diagrammatic Proofs. In Thomas Dean, editor, Proceedings of the Sixteenth International Joint Conference on Artificial Intelligence, IJCAI 99, Stockholm, Sweden, July 31 - August 6, 1999. 2 Volumes, 1450 pages. pages 378-383, Morgan Kaufmann, 1999.
Abstract is missing.