%0 Journal Article %A Hans Herda %T A characterization of spheres among convex 3-bodies %J Colloquium Mathematicum %D 1975 %P 103-104 %V 33 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/cm-33-1-103-104/ %R 10.4064/cm-33-1-103-104 %G en %F 10_4064_cm_33_1_103_104