@article{GDZPPN002323737,
title = {Explicit Estimates in the Arithmetic Theory of Cusp Forms and Poincar\'e Series.},
journal = {Mathematische Annalen},
volume = {264},
year = {1983},
pages = {9-20},
zbl = {0497.10017},
url = {http://dml.mathdoc.fr/item/GDZPPN002323737}
}
Hafner, James Lee. Explicit Estimates in the Arithmetic Theory of Cusp Forms and Poincaré Series.. Mathematische Annalen, Tome 264 (1983) pp. 9-20. http://gdmltest.u-ga.fr/item/GDZPPN002323737/