Alberto H. F. Laender Stephen W. Liddle Veda C. Storey Conceptual Modeling - ER 2000, 19th International Conference on Conceptual Modeling, Salt Lake City, Utah, USA, October 9-12, 2000, Proceedings ER Lecture Notes in Computer Science 1920 Springer 2000 3-540-41072-4 db/conf/er/er2000.html