%0 Journal Article
%A A. D. Aleksandrov
%T A theorem on triangles in a metric space and some of its applications
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1951
%P 5-23
%V 38
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1951_38_a1/
%G ru
%F TM_1951_38_a1