@article{bwmeta1.element.bwnjournal-article-aav30i1p1bwm,
author = {Chowla, S. and Goldfeld, D.},
title = {A remark on certain Hecke L-series which are non-negative on the real axis},
journal = {Acta Arithmetica},
volume = {31},
year = {1976},
pages = {1-3},
zbl = {0337.12013},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-aav30i1p1bwm}
}
Chowla, S.; Goldfeld, D. A remark on certain Hecke L-series which are non-negative on the real axis. Acta Arithmetica, Tome 31 (1976) pp. 1-3. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-aav30i1p1bwm/