%0 Journal Article %A L. Zajícek %T Gâteaux and Hadamard Differentiability via Directional Differentiability %J Journal of convex analysis %D 2014 %P 703-713 %V 21 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/JCA_2014_21_3_JCA_2014_21_3_a5/ %F JCA_2014_21_3_JCA_2014_21_3_a5