@article{1102784353, author = {Minda, David}, title = {The hyperbolic metric and coverings of Riemann surfaces.}, journal = {Pacific J. Math.}, volume = {85}, number = {2}, year = {1979}, pages = { 171-182}, language = {en}, url = {http://dml.mathdoc.fr/item/1102784353} }
Minda, David. The hyperbolic metric and coverings of Riemann surfaces.. Pacific J. Math., Tome 85 (1979) no. 2, pp. 171-182. http://gdmltest.u-ga.fr/item/1102784353/