@article{GDZPPN00241144X,
title = {An Area Method for Systems of Univalent Functions Whose Ranges do not Overlap.},
journal = {Mathematische Zeitschrift},
volume = {129},
year = {1972},
pages = {23-33},
zbl = {0228.30010},
url = {http://dml.mathdoc.fr/item/GDZPPN00241144X}
}
DeTemple, Duane W. An Area Method for Systems of Univalent Functions Whose Ranges do not Overlap.. Mathematische Zeitschrift, Tome 129 (1972) pp. 23-33. http://gdmltest.u-ga.fr/item/GDZPPN00241144X/