@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/