Bensoussan, A./Lions, J. L. (eds.), Analysis and Optimization of Systems. Proceedings, Nice, France 1984. Part 1: XIX, 591 S., 103 Abb., DM 88,—. US $ 32.10. ISBN 3‐540‐13551‐0 and Part 2: XIX, 700 S., DM 88,—. US $ 32.10. ISBN 3‐540‐13552‐9. Berlin‐Heidelberg‐New York‐Tokyo, Springer‐Verlag 1984. (Lecture Notes in Control and Information Sciences 62, 63)