@article{1183512035, author = {Boas, R. P. and Chandrasekharan, K.}, title = {Derivatives of infinite order}, journal = {Bull. Amer. Math. Soc.}, volume = {54}, number = {12}, year = {1948}, pages = { 523-526}, language = {en}, url = {http://dml.mathdoc.fr/item/1183512035} }
Boas, R. P.; Chandrasekharan, K. Derivatives of infinite order. Bull. Amer. Math. Soc., Tome 54 (1948) no. 12, pp. 523-526. http://gdmltest.u-ga.fr/item/1183512035/