%0 Journal Article %A Durdil, Jiří %T On Hadamard differentiability %J Commentationes Mathematicae Universitatis Carolinae %D 1973 %P 457-470 %V 14 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1973__14_3_a4/ %G en %F CMUC_1973__14_3_a4