%0 Journal Article %A E. S. Levitin %A B. T. Polyak %T Convergence of minimizing sequences in conditional extremum problems %J Doklady Akademii Nauk %D 1966 %P 997-1000 %V 168 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_168_5_a6/ %G ru %F DAN_1966_168_5_a6