In: Proceedings of the 1st International Conference on Formal Ontology in Information Systems (FOIS'98), June 6-8. International Conference on Formal Ontology in Information Systems (FOIS), Pages 221-235, Frontiers in Artificial Intelligence and Applications, Vol. 46, IOS Press, 1998.
In: Beiträge der Europäischen Slavistischen Linguistik (POLYSLAV 1). Pages 19-25, Die Welt der Slaven, 2. Sammelband, Vol. 1, Verlag Otto Sagner, 1998.
In: Proceedings of the 1st Conference on Linguistic Theory in Eastern Europaen Languages. Conference on Linguistic Theory in Eastern European Languages (CLITE-1), April 19-21, Szeged, Hungary, 1998.
In: Proceedings of the GIGA European Business Process & Workflow Conference. GIGA European Business Process & Workflow Conference, Geneva, Switzerland, 1998.