@article{1183498788,
author = {Robertson, M. S.},
title = {On the univalency of Ces\`aro sums of univalent functions},
journal = {Bull. Amer. Math. Soc.},
volume = {42},
number = {12},
year = {1936},
pages = { 241-243},
language = {en},
url = {http://dml.mathdoc.fr/item/1183498788}
}
Robertson, M. S. On the univalency of Cesàro sums of univalent functions. Bull. Amer. Math. Soc., Tome 42 (1936) no. 12, pp. 241-243. http://gdmltest.u-ga.fr/item/1183498788/