@article{bwmeta1.element.bwnjournal-article-aav2i1p47bwm,
author = {Estermann, T},
title = {On the representations of a number as a sum of squares},
journal = {Acta Arithmetica},
volume = {2},
year = {1936},
pages = {47-79},
zbl = {62.1127.01},
language = {en},
url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-aav2i1p47bwm}
}
Estermann, T. On the representations of a number as a sum of squares. Acta Arithmetica, Tome 2 (1936) pp. 47-79. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-aav2i1p47bwm/