with : Martin Fredriksson

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

2nd European Workshop on Multi-Agent Systems (EUMAS 2004) — 16/12/2004–17/12/2004

2nd International Workshop on Theory and Practice of Open Computational Systems (TAPOCS 2004@WET ICE 2004) — 14/06/2004–16/06/2004

1st International Workshop on Theory and Practice of Open Computational Systems (TAPOCS 2003@WET ICE 2003) — 09/06/2003–11/06/2003

3rd International Workshop on Engineering Societies in the Agents' World (ESAW 2002) — 16/09/2002–17/09/2002