Lars Braubach Wiebe van der Hoek Paolo Petta Alexander Pokahr Multiagent System Technologies, 7th German Conference, MATES 2009, Hamburg, Germany, September 9-11, 2009. Proceedings 5774 2009 http://dx.doi.org/10.1007/978-3-642-04143-3 978-3-642-04142-6 MATES Lecture Notes in Computer Science Springer db/conf/mates/mates2009.html