%0 Journal Article %A A. V. Kostochka %T Maximal capacity of the boundary of the Sperner family %J Doklady Akademii Nauk %D 1990 %P 536-538 %V 310 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1990_310_3_a4/ %G ru %F DAN_1990_310_3_a4