@article{1183494660,
author = {Bell, E. T.},
title = {Factorability of numerical functions},
journal = {Bull. Amer. Math. Soc.},
volume = {37},
number = {12},
year = {1931},
pages = { 251-253},
language = {en},
url = {http://dml.mathdoc.fr/item/1183494660}
}
Bell, E. T. Factorability of numerical functions. Bull. Amer. Math. Soc., Tome 37 (1931) no. 12, pp. 251-253. http://gdmltest.u-ga.fr/item/1183494660/