%0 Journal Article
%A Wise, Daniel
%T Nonpositive immersions, sectional curvature, and subgroup properties
%J Electronic research announcements of the American Mathematical Society
%D 2003
%P 1-9
%V 09
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.1090/S1079-6762-03-00105-7/
%R 10.1090/S1079-6762-03-00105-7
%F ERAAMS_2003_09_a0