Author: E. Alviti, E. G. Johnson, R. B. Kulkarni, J. L. Nazareth (auth.), Prof. Panos M. Pardalos, Prof. Donald W. Hearn, Prof. William W. Hager (eds.)
Author: W. Freckmann (auth.), Professor Dr. Herm. Fischer, Professor W. Freckmann, Dr. G. Hager, Professor Dr. W. Graf ƶu Leiningen-Westerburg, Professor Dr. E. A. Mitscherlich, Professor Dr. M. Popp, Professor Dr. A. Rippel, Professor Dr. O. Tornau (eds.)