Aijun An Stan Matwin Zbigniew W. Ras Dominik Slezak Foundations of Intelligent Systems, 17th International Symposium, ISMIS 2008, Toronto, Canada, May 20-23, 2008, Proceedings 4994 2008 978-3-540-68122-9 ISMIS Lecture Notes in Computer Science Springer db/conf/ismis/ismis2008.html