%0 Journal Article %A A. Timan %T A constructive duality principle in the class of continuous functions convex and decreasing monotonely to zero on a semi-axis %J Doklady Akademii Nauk %D 1963 %P 1041-1042 %V 149 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1963_149_5_a9/ %G ru %F DAN_1963_149_5_a9