@article{1183407288, author = {Cole, F. N.}, title = {Klein's Modular Functions}, journal = {Bull. New York Math. Soc.}, volume = {1}, number = {4}, year = {1892}, pages = { 105-120}, language = {en}, url = {http://dml.mathdoc.fr/item/1183407288} }
Cole, F. N. Klein's Modular Functions. Bull. New York Math. Soc., Tome 1 (1892) no. 4, pp. 105-120. http://gdmltest.u-ga.fr/item/1183407288/