@article{01562986, title = {Covering properties of meromorphic functions, negative curvature and spherical geometry.}, journal = {Annals of Mathematics. Second Series}, volume = {151}, year = {2000}, pages = {551-592}, doi = {10.2307/2661392}, zbl = {0970.30016}, language = {en}, url = {http://dml.mathdoc.fr/item/01562986} }
Bonk, M.; Eremenko, A. Covering properties of meromorphic functions, negative curvature and spherical geometry.. Annals of Mathematics. Second Series, Tome 151 (2000) pp. 551-592. doi : 10.2307/2661392. http://gdmltest.u-ga.fr/item/01562986/