@article{GDZPPN002205300,
title = {On exponential sums involving the Fourier coefficients of Maass wave forms.},
journal = {Journal f\"ur die reine und angewandte Mathematik},
volume = {390},
year = {1988},
pages = {192-207},
zbl = {0627.10017},
url = {http://dml.mathdoc.fr/item/GDZPPN002205300}
}
Meurman, T. On exponential sums involving the Fourier coefficients of Maass wave forms.. Journal für die reine und angewandte Mathematik, Tome 390 (1988) pp. 192-207. http://gdmltest.u-ga.fr/item/GDZPPN002205300/