%0 Journal Article %A V. P. Soltan %T Some questions in the abstract theory of convexity %J Doklady Akademii Nauk %D 1976 %P 310-313 %V 228 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1976_228_2_a13/ %G ru %F DAN_1976_228_2_a13