with : Chihab Hanachi

5th International Central and Eastern European Conference on Multi-Agent Systems (CEEMAS 2007) — 25/09/2007–27/09/2007

4th International Central and Eastern European Conference on Multi-Agent Systems (CEEMAS 2005) — 15/09/2005–17/09/2005

Coordination Models, Languages and Applications. Special Track of the 2003 ACM Symposium on Applied Computing (CM 2003@SAC 2003) — 11/03/2003

1st International Workshop on Engineering Societies in the Agents' World (ESAW'00@ECAI 2000) — 21/08/2000

Coordination Models, Languages and Applications. Special Track of the 2000 ACM Symposium on Applied Computing (CM 2000@SAC 2000) — 20/03/2000–21/03/2000