%0 Journal Article %A V. I. Skalyga %T On~deformations of nonsmooth optimization problems having an isolated extremal %J Izvestiya. Mathematics %D 1995 %P 187-195 %V 45 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1995_45_1_a8/ %G en %F IM2_1995_45_1_a8