%0 Journal Article %A N. I. Naumova %T The core in a game with a countable number of players %J Doklady Akademii Nauk %D 1971 %P 40-42 %V 197 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1971_197_1_a9/ %G ru %F DAN_1971_197_1_a9