%0 Journal Article %A V. P. Fedotov %T Geometric mean of convex sets %J Zapiski Nauchnykh Seminarov POMI %D 1974 %P 113-116 %V 45 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1974_45_a9/ %G ru %F ZNSL_1974_45_a9