@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/