@article{1077473737,
author = {Niven, Ivan},
title = {A note on the number theory of quaternions},
journal = {Duke Math. J.},
volume = {13},
number = {1},
year = {1946},
pages = { 397-400},
language = {en},
url = {http://dml.mathdoc.fr/item/1077473737}
}
Niven, Ivan. A note on the number theory of quaternions. Duke Math. J., Tome 13 (1946) no. 1, pp. 397-400. http://gdmltest.u-ga.fr/item/1077473737/