Conceptual Modeling for E-Business and the Web ER 2000 Workshops on Conceptual Modeling Approaches for E-Business and the World Wide Web and Conceptual Modeling, Salt Lake City, Utah, USA, October 9-12, 2000 Proceedings - Liddle, Stephen W.; Liddle, Stephen W.; Mayr, Heinrich C.; Mayr, Heinrich C.; Thalheim, Bernhard; Thalheim, Bernhard (Springer Berlin Heidelberg : Imprint: Springer, 2000)