Jung-Jin Yang, Makoto Yokoo, Takayuki Ito, Zhi Jin, Paul Scerri: Principles of Practice in Multi-Agent Systems, 12th International Conference, PRIMA 2009, Nagoya, Japan, December 14-16, 2009. Proceedings. Lecture Notes in Computer Science 5925, Springer 2009, ISBN 978-3-642-11160-0