@article{1077473491,
author = {Michal, A. D.},
title = {The Fr\'echet differentials of regular power series in
normed linear spaces},
journal = {Duke Math. J.},
volume = {13},
number = {1},
year = {1946},
pages = { 57-59},
language = {en},
url = {http://dml.mathdoc.fr/item/1077473491}
}
Michal, A. D. The Fréchet differentials of regular power series in
normed linear spaces. Duke Math. J., Tome 13 (1946) no. 1, pp. 57-59. http://gdmltest.u-ga.fr/item/1077473491/