@article{GDZPPN002429780,
title = {Properties of Some Extremal Nonvanishing Univalent Functions.},
journal = {Mathematische Zeitschrift},
volume = {185},
year = {1984},
pages = {519-526},
zbl = {0576.30015},
url = {http://dml.mathdoc.fr/item/GDZPPN002429780}
}
Brown, Johnny E. Properties of Some Extremal Nonvanishing Univalent Functions.. Mathematische Zeitschrift, Tome 185 (1984) pp. 519-526. http://gdmltest.u-ga.fr/item/GDZPPN002429780/