%0 Journal Article %A Casini, Emanuele %T Degree of convexity and product spaces %J Commentationes Mathematicae Universitatis Carolinae %D 1990 %P 637-641 %V 31 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1990__31_4_a3/ %G en %F CMUC_1990__31_4_a3