Nigel Ward. Adding Specification Constructors to the Refinement Calculus. In Jim Woodcock, Peter Gorm Larsen, editors, FME 93: Industrial-Strength Formal Methods, First International Symposium of Formal Methods Europe, Odense, Denmark, April 19-23, 1993, Proceedings. Volume 670 of Lecture Notes in Computer Science, pages 652-670, Springer, 1993.
Abstract is missing.