%0 Journal Article
%A V. N. Berestovskii
%T On a~problem by V.\,A.~Toponogov
%J Matematičeskie trudy
%D 2010
%P 15-22
%V 13
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MT_2010_13_1_a1/
%G ru
%F MT_2010_13_1_a1