Mauricio Osorio, Juan Carlos Nieves. Stratified Partial-Order Logic Programming. 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 225-235, Springer, 2001. [doi]