@article{1077465578,
author = {Cohen, Eckford},
title = {Rings of arithmetic functions. II: The number of solutions
of quadratic congruences},
journal = {Duke Math. J.},
volume = {21},
number = {1},
year = {1954},
pages = { 9-28},
language = {en},
url = {http://dml.mathdoc.fr/item/1077465578}
}
Cohen, Eckford. Rings of arithmetic functions. II: The number of solutions
of quadratic congruences. Duke Math. J., Tome 21 (1954) no. 1, pp. 9-28. http://gdmltest.u-ga.fr/item/1077465578/