%0 Journal Article %A SokoĊ‚owski, Jan %T Nonsmooth optimal design problems for the Kirchhoff plate with unilateral conditions %J Kybernetika %D 1993 %P 284-290 %V 29 %N 3 %U http://geodesic.mathdoc.fr/item/KYB_1993_29_3_a7/ %G en %F KYB_1993_29_3_a7