%0 Journal Article
%A S. A. Akbarov
%A V. A. Toponogov
%T A theorem on the congruence of the angles of a triangle for a class of Riemannian manifolds
%J Matematičeskie trudy
%D 1987
%P 16-25
%V 9
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MT_1987_9_a1/
%G ru
%F MT_1987_9_a1