with : Steffen Staab

28th European Conference on Artificial Intelligence (ECAI-2025) — 25/10/2025–30/10/2025

XI International Conference of the Italian Association for Artificial Intelligence (AI*IA 2009) — 09/12/2009–12/12/2009

6th German Conference on Multi-Agent System Technologies (MATES 2008) — 23/09/2008–26/09/2008

5th German Conference on Multi-Agent System Technologies (MATES 2007) — 24/09/2007–26/09/2007

10th Congress of the Italian Association for Artificial Intelligence (AI*IA'07) — 10/09/2007–13/09/2007

4th German Conference on Multi-Agent System Technologies (MATES 2006) — 19/09/2006–21/09/2006

9th Congress of the Italian Association for Artificial Intelligence (AI*IA 2005) — 21/09/2005–23/09/2005

3rd German Conference on Multi-Agent System Technologies (MATES 2005) — 11/09/2005–13/09/2005

International Workshop on Semantic Web Technology for Mobile and Ubiquitous Applications (SWMU 2004 @ ISWC 2004) — 07/11/2004