NLH/E, a natural lagnuage help system Tichy, W. F.; Adams, R. L.; Holter, L. 1989. In: Proceedings of the 11th International Conference on Software Engineering, Pittsburgh, PA 1989. New York, NY 1989. S. 364-367
Design and implementation of KARDAMOM - A set-oriented data flow database machine Bueltzingsloewen, G. von; Dittrich, K.; Iochpe, C.; Kramer, R.; Liedtke, R.-P.; Lockemann, P.; Schryro, M. 1989. In: Database machines. 6th Int. Workshop on Database Machines. Ed.: H. Boral. Berlin 1989. S. 18-33. (Lecture notes in computer science. 368.)
Upgrading a complex object DBMS to full object-orientation: a case study Dentler, H.; Dittrich, K.; Kotz, A.; Scheurer, M.; Schmid, F.-J.; Schiefer, B. 1989. In: Proceedings. 2nd International Conference on Data and Knowledge Systems for Manufacturing and Engineering. Gaithersburg, MD 1989 S. 122-130
Zeichen ueber Zeichen Langner, J. 1989. In: Katalog der Ausstellung Johann Georg Geyger. Freiburg: Kunstver. 1989. S. 3-8
Donatello und die "rinascita delle arti" Herzner, V. 1989. In: Donatello-Studien. Muenchen 1989. S. 28- 42. (Italienische Forschungen. Kunsthistorisches Institut Florenz. Folge 3, Nr. 16.)