Elisa Bertino Stavros Christodoulakis Dimitris Plexousakis Vassilis Christophides Manolis Koubarakis Klemens Böhm Elena Ferrari 0001 Advances in Database Technology - EDBT 2004, 9th International Conference on Extending Database Technology, Heraklion, Crete, Greece, March 14-18, 2004, Proceedings EDBT Lecture Notes in Computer Science 2992 Springer 2004 3-540-21200-0 https://doi.org/10.1007/b95855 db/conf/edbt/edbt2004.html