%0 Journal Article %A VeselĂ˝, Libor %T A simple geometrie proof of a theorem for starshaped unions of convex sets %J Acta Universitatis Carolinae. Mathematica et Physica %D 2008 %P 79-82 %V 49 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AUCMP_2008__49_2_a7/ %G en %F AUCMP_2008__49_2_a7