@article{1183486689, author = {Ford, L. R.}, title = {The fundamental region for a Fuchsian group}, journal = {Bull. Amer. Math. Soc.}, volume = {31}, number = {9-10}, year = {1925}, pages = { 531-539}, language = {en}, url = {http://dml.mathdoc.fr/item/1183486689} }
Ford, L. R. The fundamental region for a Fuchsian group. Bull. Amer. Math. Soc., Tome 31 (1925) no. 9-10, pp. 531-539. http://gdmltest.u-ga.fr/item/1183486689/