%0 Journal Article
%A D. D. Sokoloff
%T On topology of universe models
%J Doklady Akademii Nauk
%D 1970
%P 1307-1309
%V 195
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1970_195_6_a14/
%G ru
%F DAN_1970_195_6_a14