Sushil Jajodia, Pierangela Samarati, Stelvio Cimato: Proceedings of The IFIP TC-11 23rd International Information Security Conference, IFIP 20th World Computer Congress, IFIP SEC 2008, September 7-10, 2008, Milano, Italy. IFIP 278, Springer 2008, ISBN 978-0-387-09698-8