%0 Journal Article %A V. S. Klimov %T Topological characteristics of non-smooth functionals %J Izvestiya. Mathematics %D 1998 %P 969-984 %V 62 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM2_1998_62_5_a4/ %G en %F IM2_1998_62_5_a4