%0 Journal Article %A Udo Simon %T Blaschke hypersurfaces with constant non-positive affine mean curvature %J Colloquium Mathematicum %D 2017 %P 113-120 %V 150 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm7155s-2-2017/ %R 10.4064/cm7155s-2-2017 %G en %F 10_4064_cm7155s_2_2017