@article{1183498925,
author = {Hille, Einar and Sz\'asz, Otto},
title = {On the completeness of Lambert functions},
journal = {Bull. Amer. Math. Soc.},
volume = {42},
number = {12},
year = {1936},
pages = { 411-418},
language = {en},
url = {http://dml.mathdoc.fr/item/1183498925}
}
Hille, Einar; Szász, Otto. On the completeness of Lambert functions. Bull. Amer. Math. Soc., Tome 42 (1936) no. 12, pp. 411-418. http://gdmltest.u-ga.fr/item/1183498925/