%0 Journal Article %A L. V. Kantorovich %A G. Sh. Rubinshtein %T On a functional space and certain extremum problems %J Doklady Akademii Nauk %D 1957 %P 1058-1061 %V 115 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1957_115_6_a1/ %G ru %F DAN_1957_115_6_a1