@article{1256049421, author = {Nicholls, P. J.}, title = {The orbital counting function of a Fuchsian group}, journal = {Illinois J. Math.}, volume = {21}, number = {4}, year = {1977}, pages = { 374-384}, language = {en}, url = {http://dml.mathdoc.fr/item/1256049421} }
Nicholls, P. J. The orbital counting function of a Fuchsian group. Illinois J. Math., Tome 21 (1977) no. 4, pp. 374-384. http://gdmltest.u-ga.fr/item/1256049421/