%0 Journal Article
%A Viktor Schroeder
%T A splitting theorem for spaces of nonpositive curvature.
%J Inventiones mathematicae
%D 1985
%P 323-328
%V 79
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM_1985__79_143199/
%F IM_1985__79_143199