Andreas Dengel Karsten Berns Thomas M. Breuel Frank Bomarius Thomas Roth-Berghofer KI 2008: Advances in Artificial Intelligence, 31st Annual German Conference on AI, KI 2008, Kaiserslautern, Germany, September 23-26, 2008. Proceedings 5243 2008 978-3-540-85844-7 KI Lecture Notes in Computer Science Springer db/conf/ki/ki2008.html