In: KI - Künstliche Intelligenz, German Journal on Artificial Intelligence - Organ des Fachbereiches "Künstliche Intelligenz" der Gesellschaft für Informatik e.V. (KI), No. 2/1995, Pages 50-55, Oldenbourg, 5/1995.
In: Proceedings of the 4th Annual Symposium on Document Analysis and Information Retrieval. Annual Symposium on Document Analysis and Information Retrieval (SDAIR-95), April 24-26, Las Vegas, NV, USA, Pages 399-411, 1995.
In: Proceedings of the 9th Twente Workshop on Language Technology (Corpus Based Approaches to Dialogue Modelling). Twente Workshop on Language Technology (TWLT-1995), 9th, December 6-8, Twente, Netherlands, 1995.