@article{1183499315,
author = {Warschawski, S. E.},
title = {On the preservation of angles at a boundary point in conformal mapping},
journal = {Bull. Amer. Math. Soc.},
volume = {42},
number = {12},
year = {1936},
pages = { 674-680},
language = {en},
url = {http://dml.mathdoc.fr/item/1183499315}
}
Warschawski, S. E. On the preservation of angles at a boundary point in conformal mapping. Bull. Amer. Math. Soc., Tome 42 (1936) no. 12, pp. 674-680. http://gdmltest.u-ga.fr/item/1183499315/