Carlos Bento Amílcar Cardoso Gaël Dias Progress in Artificial Intelligence, 12th Portuguese Conference on Artificial Intelligence, EPIA 2005, Covilhã, Portugal, December 5-8, 2005, Proceedings 3808 2005 3-540-30737-0 EPIA Lecture Notes in Computer Science Springer db/conf/epia/epia2005.html