@article{GDZPPN002234580,
title = {On the number of y-smooth natural numbers ... representable as a sum of two integer squares.},
journal = {Manuscripta mathematica},
volume = {79},
year = {1993},
pages = {199-212},
zbl = {0791.11046},
url = {http://dml.mathdoc.fr/item/GDZPPN002234580}
}
Moree, Pieter. On the number of y-smooth natural numbers ... representable as a sum of two integer squares.. Manuscripta mathematica, Tome 79 (1993) pp. 199-212. http://gdmltest.u-ga.fr/item/GDZPPN002234580/