- Huib Aldewereld, Virginia Dignum, Gauthier Picard, editors, Engineering Societies in the Agents World X, 10th International Workshop, ESAW 2009, Utrecht, The Netherlands, November 18-20, 2009. Proceedings. Volume 5881 of Lecture Notes in Computer Science, Springer, 2009.
- Alexander Artikis, Gauthier Picard, Laurent Vercouter, editors, Engineering Societies in the Agents World IX, 9th International Workshop, ESAW 2008, Saint-Etienne, France, September 24-26, 2008, Revised Selected Papers. Volume 5485 of Lecture Notes in Computer Science, Springer, 2009.