%0 Journal Article
%A V. B. Marenich
%T Topological gap phenomenon for open manifolds of nonnegative
%J Doklady Akademii Nauk
%D 1985
%P 528-531
%V 284
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1985_284_3_a2/
%G ru
%F DAN_1985_284_3_a2