%0 Journal Article
%A J.-H. Eschenburg
%T Comparison theorems and hypersurfaces.
%J Manuscripta mathematica
%D 1987
%P 295-324
%V 59
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MM2_1987__59_155252/
%F MM2_1987__59_155252