Pascal Hitzler, Anthony Karel Seda. Characterizations of Classes of Programs by Three-Valued Operators. In Michael Gelfond, Nicola Leone, Gerald Pfeifer, editors, Logic Programming and Nonmonotonic Reasoning, 5th International Conference, LPNMR 99, El Paso, Texas, USA, December 2-4, 1999, Proceedings. Volume 1730 of Lecture Notes in Computer Science, pages 357-371, Springer, 1999. [doi]
Abstract is missing.