Progress in Artificial Intelligence: Knowledge Extraction, Multi-agent Systems, Logic Programming, and Constraint Solving 10th Portuguese Conference on Artificial Intelligence, EPIA 2001, Porto, Portugal, December 17-20, 2001. Proceedings Brazdil Pavel Heftet / 2001 / Engelsk
Discovery Science 12th International Conference, DS 2009, Porto, Portugal, October 3-5, 2009 Gama, João Heftet / 2009 / Engelsk
