Nondifferentiable optimization : motivations and applications: proceedings of an IIASA (International Institute for Applied Systems Analysis) Workshop on Nondifferentiable Optimization - IIASA (International Institute for Applied Systems Analysis) Workshop on Nondifferentiable Optimization; Demyanov, Vladimir Fedorovich, 1938-; Pallaschke, Diethard, (Springer-Verlag, 1985)