%0 Journal Article %A O. V. Sarmanov %A V. K. Zakharov %T A combinatorial problem of N.\,V.~Smirnov %J Doklady Akademii Nauk %D 1967 %P 530-532 %V 176 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1967_176_3_a10/ %G ru %F DAN_1967_176_3_a10