%0 Journal Article %A Kolomý, Josef %T On the differentiability of mappings and convex functionals %J Commentationes Mathematicae Universitatis Carolinae %D 1967 %P 735-752 %V 08 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1967__8_4_a9/ %G en %F CMUC_1967__8_4_a9