In: Mokrane Bouzeghoub; Zoubida Kedad; Elisabeth Metais (Hrsg.). Natural Language Processing and Information Systems. Pages 227-238, Lecture Notes in Computer Science (LNCS), Vol. 1959, ISBN 978-3-540-41943-3, Springer, Berlin, 2001.
In: International Journal on Cooperative Information Systems (IJCIS), Double special Issue on Intelligent Information Agents: Theory and Applications, Vol. 10, Pages 51-56, World Scientific Publ. 3/2001.
International Workshop on Cooperative Information Agents (CIA-2001), September 6-8, Modena, Italy, Lecture Notes in Artificial Intelligence (LNAI), Vol. 2182, Springer-Verlag, 2001.
Matthias Klusch; A. Omicini; F. Zambonelli; R. Tolksdorf (Hrsg.)