Advances in Database Technology - EDBT 2006 - Ioannidis, Yannis; Boehm, Christian; Boehm, Klemens; Grust, Torsten; Hatzopoulos, Mike; Kanade, Takeo; Kemper, Alfons; Matthes, Florian; Schmidt, Joachim W.; Scholl, Marc H. (Springer Berlin / Heidelberg, 2006)