%0 Journal Article %A Nicolas Monod %T Extreme points in non-positive curvature %J Studia Mathematica %D 2016 %P 265-270 %V 234 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/sm8549-6-2016/ %R 10.4064/sm8549-6-2016 %G en %F 10_4064_sm8549_6_2016