@article{1077474311,
author = {Richards, Paul I.},
title = {A special class of functions with positive real part in a
half-plane},
journal = {Duke Math. J.},
volume = {14},
number = {1},
year = {1947},
pages = { 777-786},
language = {en},
url = {http://dml.mathdoc.fr/item/1077474311}
}
Richards, Paul I. A special class of functions with positive real part in a
half-plane. Duke Math. J., Tome 14 (1947) no. 1, pp. 777-786. http://gdmltest.u-ga.fr/item/1077474311/