@article{JCA_2014_21_3_JCA_2014_21_3_a5,
     author = {L. Zaj{\'\i}cek},
     title = {G\^ateaux and {Hadamard} {Differentiability} via {Directional} {Differentiability}},
     journal = {Journal of convex analysis},
     pages = {703--713},
     publisher = {mathdoc},
     volume = {21},
     number = {3},
     year = {2014},
     url = {http://geodesic.mathdoc.fr/item/JCA_2014_21_3_JCA_2014_21_3_a5/}
}