%0 Journal Article %A V. D. Milman %T A certain transformation of convex functions and a duality of the $\beta$ and $\delta$ characteristics of a $B$-space %J Doklady Akademii Nauk %D 1969 %P 33-35 %V 187 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1969_187_1_a7/ %G ru %F DAN_1969_187_1_a7