Large-Scale Modelling and Interactive Decision Analysis: Proceedings of a Workshop sponsored by IIASA (International Institute for Applied Systems Analysis) and the Institute for Informatics of the Academy of Sciences of the GDR Held at the Wartburg Castle, Eisenach, GDR, November 18–21, 1985

Parallel Computing and Mathematical Optimization: Proceedings of the Workshop on Parallel Algorithms and Transputers for Optimization, Held at the University of Siegen, FRG, November 9, 1990