%0 Journal Article %A Zbigniew Lipecki %T Cardinality of some convex sets and of their sets of extreme points %J Colloquium Mathematicum %D 2011 %P 133-147 %V 123 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm123-1-10/ %R 10.4064/cm123-1-10 %G en %F 10_4064_cm123_1_10