@article{GDZPPN002323745,
title = {Zeros on the Critical Line for Dirichlet Series Attached to Certain Cusp Forms.},
journal = {Mathematische Annalen},
volume = {264},
year = {1983},
pages = {21-38},
zbl = {0497.10018},
url = {http://dml.mathdoc.fr/item/GDZPPN002323745}
}
Hafner, James Lee. Zeros on the Critical Line for Dirichlet Series Attached to Certain Cusp Forms.. Mathematische Annalen, Tome 264 (1983) pp. 21-38. http://gdmltest.u-ga.fr/item/GDZPPN002323745/