1. Lauber, R.J.: Impact of a Computer-Aided Support System on Quality and Reliability Proceedings COMPSAC, Nov. 8–12, 1982 6th International Computer Software & Applications Conference, Chicago N.Y.: IEEE, 1982, pp 248–256
2. Gayen, J.T., Haferstroh, U.: Licensing of Safety-Related Equipment of Track-Bound Transportation Systems Preprints of the Int. Conference on Control in Transportation Systems, Baden-Baden, April 1983
3. Software Development Tools Berlin;Riddle,1980
4. Lauber, R., J.: Development Support Systems IEEE Computer, Vol 15, No.5, pp 36–46
5. Institute for Control Engineering and Process Control: Introduction to the Development Support System EPOS, 1983 available from the author