%0 Journal Article %A S. I. Zukhovitskii %T Seventh Winter School-Symposium on Mathematical Programming and Related Questions %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1974 %V 29 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/RM_1974_29_5_a27/ %G ru %F RM_1974_29_5_a27