@article{GDZPPN002060183,
title = {Comparison Domains for the Problem of the Angular Derivative},
journal = {Commentarii mathematici Helvetici},
volume = {46},
year = {1971},
pages = {98-112},
zbl = {0207.07705},
url = {http://dml.mathdoc.fr/item/GDZPPN002060183}
}
Eke, B.G. Comparison Domains for the Problem of the Angular Derivative. Commentarii mathematici Helvetici, Tome 46 (1971) pp. 98-112. http://gdmltest.u-ga.fr/item/GDZPPN002060183/