1. M. Abadi, M. Burrows, B. Lampson and G. Plotkin. A Calculus for Access Control in Distributed Systems. In CRYPTO 91, Proceedings. 1991.
2. J. ter Bekke. Semantic Data Modeling. Prentice Hall, 1992.
3. F. Cornelius, H. Hußmann and M. Löwe. The Korso Case Study for Software Engineering with Formal Methods: A Medical Information System. In Broy, Jähnichen (eds.), Korso, Correct Software by Formal Methods. Springer LNCS 1995. (In this volume).
4. T. Fuchß. Translating E/R-diagrams into Consistent Database Specifications. Technical Report 2/94, Fakultät für Informatik, Universität Karlsruhe, Germany, 1994.
5. R. Hettler. Übersetzung von E/R-Modellen nach Spectrum. Technical Report I9333, TU München, Germany, 1993 (in german).