%0 Journal Article %A Sladký, Karel %T Special issue: Nondifferentiable Problems in Optimal Design %J Kybernetika %D 1993 %V 29 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1993__29_3_a0/ %G en %F KYB_1993__29_3_a0