Zohra Bellahsene Dilip Patel Colette Rolland Object-Oriented. Information Systems, 8th International Conference, OOIS 2002, Montpellier, France, September 2-5, 2002, Proceedings OOIS Lecture Notes in Computer Science 2425 Springer 2002 3-540-44087-9 db/conf/oois/oois2002.html