Databases, Information Systems, and Peer-to-Peer Computing : International Workshops, DBISP2P 2005/2006, Trondheim, Norway, August 28-29, 2006, Revised Selected Papers - Gianluca Moro, Sonia Bergamaschi, Sam Joseph, Jean-Henry Morin, Aris M. Ouksel ((Lecture Notes in Computer Science))