Ralf Jungclaus, Gunter Saake, Thorsten Hartmann. Language Features for Object-Oriented Conceptual Modelling. In Toby J. Teorey, editor, Proceedings of the 10th International Conference on Entity-Relationship Approach (ER 91), 23-25 October, 1991, San Mateo, California, USA. pages 309-324, ER Institute, 1991. [doi]
Abstract is missing.