%0 Journal Article
%A V. B. Marenich
%A V. A. Toponogov
%T Open manifolds of nonnegative curvature
%J Itogi Nauki i Tekhniki. Seriya Problemy Geometrii. Trudy Geometricheskogo Seminara
%D 1989
%P 67-91
%V 21
%I mathdoc
%U http://geodesic.mathdoc.fr/item/INTG_1989_21_a3/
%G ru
%F INTG_1989_21_a3