@article{1183424953, author = {Daniell, P. J.}, title = {The derivative of a functional}, journal = {Bull. Amer. Math. Soc.}, volume = {26}, number = {3}, year = {1919}, pages = { 414-416}, language = {en}, url = {http://dml.mathdoc.fr/item/1183424953} }
Daniell, P. J. The derivative of a functional. Bull. Amer. Math. Soc., Tome 26 (1919) no. 3, pp. 414-416. http://gdmltest.u-ga.fr/item/1183424953/