Alan M. Frisch, Richard B. Scherl. A Constraint Logic Approach to Modal Deduction. In Jan van Eijck, editor, Logics in AI, European Workshop, JELIA 90, Amsterdam, The Netherlands, September 10-14, 1990, Proceedings. Volume 478 of Lecture Notes in Computer Science, pages 234-250, Springer, 1990.
Abstract is missing.