Christian S. Jensen, Keith G. Jeffery, Jaroslav Pokorný, Simonas Saltenis, Elisa Bertino, Klemens Böhm, Matthias Jarke: Advances in Database Technology - EDBT 2002, 8th International Conference on Extending Database Technology, Prague, Czech Republic, March 25-27, Proceedings. Lecture Notes in Computer Science 2287, Springer 2002, ISBN 3-540-43324-4