@article{10_4064_fm223_2_1,
     author = {Sergey A. Antonyan and Natalia Jonard-P\'erez},
     title = {Affine group acting on hyperspaces of
 compact convex subsets of ${\mathbb R}^{n}$},
     journal = {Fundamenta Mathematicae},
     pages = {99--136},
     publisher = {mathdoc},
     volume = {223},
     number = {2},
     year = {2013},
     doi = {10.4064/fm223-2-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm223-2-1/}
}