Yan Zhang. Representing Defeasible Constraints and Observations in Action Theories. In Grigoris Antoniou, John K. Slaney, editors, Advanced Topics in Artificial Intelligence, 11th Australian Joint Conference on Artificial Intelligence, AI 98, Brisbane, Australia, July 13-17, 1998, Selected Papers. Volume 1502 of Lecture Notes in Computer Science, pages 309-320, Springer, 1998.
Abstract is missing.