%0 Journal Article
%A P. D. Andreev
%T The proof of Busemann conjecture for $G$-spaces with non-positive curvature
%J Algebra i analiz
%D 2014
%P 1-20
%V 26
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AA_2014_26_2_a0/
%G ru
%F AA_2014_26_2_a0