%0 Journal Article %A M. I. Sumin %T Nondifferential Kuhn--Tucker theorems in constrained %J Vestnik rossijskih universitetov. Matematika %D 2020 %P 307-330 %V 25 %N 131 %I mathdoc %U http://geodesic.mathdoc.fr/item/VTAMU_2020_25_131_a6/ %G ru %F VTAMU_2020_25_131_a6