Carroll Morgan. Types and Invariants in the Refinement Calculus. In Jan L. A. van de Snepscheut, editor, Mathematics of Program Construction, 375th Anniversary of the Groningen University, International Conference, Groningen, The Netherlands, June 26-30, 1989, Proceedings. Volume 375 of Lecture Notes in Computer Science, pages 363-378, Springer, 1989.
Abstract is missing.