%0 Journal Article %A V. N. Gorbatenko %T $F$-Convex functions, their properties and applications to the solution of extremal problems %J Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki %D 1975 %P 860-868 %V 15 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZVMMF_1975_15_4_a3/ %G ru %F ZVMMF_1975_15_4_a3