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@article{CMUC_1967__8_3_a4, author = {Zizler, V\'aclav E.}, title = {On the differentiability of mappings in {Banach} spaces}, journal = {Commentationes Mathematicae Universitatis Carolinae}, pages = {415--430}, publisher = {mathdoc}, volume = {08}, number = {3}, year = {1967}, mrnumber = {0227772}, zbl = {0179.19101}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CMUC_1967__8_3_a4/} }
Zizler, Václav E. On the differentiability of mappings in Banach spaces. Commentationes Mathematicae Universitatis Carolinae, Tome 08 (1967) no. 3, pp. 415-430. http://geodesic.mathdoc.fr/item/CMUC_1967__8_3_a4/