In: Daniel P. Lopresti; Jiangying Zhou (Hrsg.). Document Recognition V. DDR Document Recognition and Retrieval (DDR), San Jose, Pages 160-168, Proceedings of SPIE, Vol. 3305, 1/1998.
In: Proceedings of the GIGA European Business Process & Workflow Conference. GIGA European Business Process & Workflow Conference, Geneva, Switzerland, 1998.
In: ISOMA-98: Sixth International Symposium on Manufacturing with Applications. International Symposium on Manufacturing with Applications (ISOMA), Anchorage, TSI Press, Albuquerque, New Mexico, USA, 5/1998.
In: IT& Knows, Conference on Information Technology and Knowledge Systems. Conference on Information Technology and Knowledge Systems (IT& Knows), located at 15th IFIP World Computer Congress, August 31 - September 4, Vienna & Budapest, Pages 458-471, ISBN 3-85403-122-X, Austrian Computer Society (OCG), 1998.