TY - JOUR AU - L. Zajícek TI - Gâteaux and Hadamard Differentiability via Directional Differentiability JO - Journal of convex analysis PY - 2014 SP - 703 EP - 713 VL - 21 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/JCA_2014_21_3_JCA_2014_21_3_a5/ ID - JCA_2014_21_3_JCA_2014_21_3_a5 ER -