Anneke Kleppe, Jos Warmer, Steve Cook. Informal Formality? The Object Constraint Language and Its Application in the UML Metamodel. In Jean Bézivin, Pierre-Alain Muller, editors, The Unified Modeling Language, «UML» 98: Beyond the Notation, First International Workshop, Mulhouse, France, June 3-4, 1998, Selected Papers. Volume 1618 of Lecture Notes in Computer Science, pages 148-161, Springer, 1998.
Abstract is missing.