J. William Murdock, Ashok K. Goel. Learning about Constraints by Reflection. In Eleni Stroulia, Stan Matwin, editors, Advances in Artificial Intelligence, 14th Biennial Conference of the Canadian Society for Computational Studies of Intelligence, AI 2001, Ottawa, Canada, June 7-9, 2001, Proceedings. Volume 2056 of Lecture Notes in Computer Science, pages 131-140, Springer, 2001. [doi]