with : Ulises Cortes

4th European Workshop on Multi-Agent Systems (EUMAS 2006) — 14/12/2006–15/12/2006

4th International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2005) — 25/07/2005–29/07/2005

Workshop “Agents, Norms and Institutions for Regulated Multiagent Systems” (ANI@REM 2005@AAMAS 2005) — 25/07/2005

3rd International Conference on Autonomous Agents and Multiagent Systems (AAMAS 2004) — 19/07/2004–23/07/2004