@article{GDZPPN002391465,
title = {E-Function Series whose Sums are Constants.},
journal = {Mathematische Zeitschrift},
volume = {78},
year = {1962},
pages = {231-234},
zbl = {0103.29701},
url = {http://dml.mathdoc.fr/item/GDZPPN002391465}
}
Ragab, F.M.; MacRobert, T.M. E-Function Series whose Sums are Constants.. Mathematische Zeitschrift, Tome 78 (1962) pp. 231-234. http://gdmltest.u-ga.fr/item/GDZPPN002391465/