Hans Kleine Büning, Theodor Lettmann. Classes of First Order Formulas Under Various Satisfiability Definitions. In Jörg H. Siekmann, editor, 8th International Conference on Automated Deduction, Oxford, England, July 27 - August 1, 1986, Proceedings. Volume 230 of Lecture Notes in Computer Science, pages 553-563, Springer, 1986.
Abstract is missing.