@article{MZ_1974__139_172107,
     author = {Jos\'e I. Nieto},
     title = {Gateaux {Differentials} in {Banach} {Algebras.}},
     journal = {Mathematische Zeitschrift},
     pages = {23--34},
     publisher = {mathdoc},
     volume = {139},
     year = {1974},
     zbl = {0275.46036},
     url = {http://geodesic.mathdoc.fr/item/MZ_1974__139_172107/}
}