International Workshop on Cooperative Information Agents (CIA-2004), September 27-29, Erfurt, Germany, Lecture Notes in Artificial Intelligence (LNAI), Vol. 3919, ISBN 978 3540231707, Springer-Verlag, 2004.
In: Proc. of the Workshop on Knowledge Markup and Semantic Annotation (Semannot2004) at the International Semantic Web Conference. Workshop on Knowledge Markup and Semantic Annotation (Semannot), 2004.
In: Proc. of the Workshop on Evaluation of Ontology-based Tools (EON2004) at the International Semantic Web Conference. International Workshop on Evaluation of Ontologies and Ontology-based tools (EON), 2004.
In: Chu-Ren Huang; Winfried Lenders (Hrsg.). Computational Linguistics and Beyond: Perspectives at the Beginning of the 21st Century. Pages 137-181, Frontiers in Linguistics Series, Vol. 1, Academia Sinica, Taiwan, 7/2004.