ECAI 2008 18th European Conference on Artificial Intelligence, July 21-25, 2008, Patras, Greece including Prestigious Applications of Intelligent Systems (PAIS 2008) proceedings - Ghallab, Malik; Σπυρόπουλος Κωνσταντίνος Δ.; Φακωτάκης, Νικόλαος; Αβούρης, Νικόλαος Μ. 1956- (IOS Press, 2008)