Christine Parent Klaus-Dieter Schewe Veda C. Storey Bernhard Thalheim Conceptual Modeling - ER 2007, 26th International Conference on Conceptual Modeling, Auckland, New Zealand, November 5-9, 2007, Proceedings ER Lecture Notes in Computer Science 4801 Springer 2007 978-3-540-75562-3 db/conf/er/er2007.html