%0 Journal Article %A G. E. Ivanov %A M. S. Lopushanski %T Well-posedness of approximation and optimization problems for weakly convex sets and functions %J Fundamentalʹnaâ i prikladnaâ matematika %D 2013 %P 89-118 %V 18 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/FPM_2013_18_5_a4/ %G ru %F FPM_2013_18_5_a4