%0 Journal Article %A Sergey A. Antonyan %A Natalia Jonard-Pérez %T Affine group acting on hyperspaces of compact convex subsets of ${\mathbb R}^{n}$ %J Fundamenta Mathematicae %D 2013 %P 99-136 %V 223 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm223-2-1/ %R 10.4064/fm223-2-1 %G en %F 10_4064_fm223_2_1