In: Proceedings of the 4th International Conference on Document Analysis and Recognition. International Conference on Document Analysis and Recognition (ICDAR-97), August 18-20, Ulm, Germany, Pages 1060-1066, ISBN 0-8186-7898-4, IEEE Computer Society, Washington, DC, USA, 1997.
In: Proceedings of the 20th Annual International ACM/SIGIR Conference on Research and Development in Information Retrieval (SIGIR 97). ACM SIGIR Conference on Information Retrieval (SIGIR), Philadelphia, 7/1997.
In: Recent Advances in Natural Language Processing (RANLP 97). International Conference on Recent Advances in Natural Language Processing (RANLP), Tzigov Chark, Pages 202-207, 9/1997.
In: 6. Fachtagung der Sektion Computerlinguistik der Deutschen Gesellschaft für Sprachwissenschaft (DGfS/CL 97): Sektion Computerlinguistik, 08.-10. Oktober. Fachtagung der Sektion Computerlinguistik der Deutschen Gesellschaft für Sprachwissenschaft (DGfS/CL), Heidelberg, Germany, 1997.