@article{GDZPPN002260379,
title = {On Quaternion Number-Systems},
journal = {Mathematische Annalen},
volume = {61},
year = {1905},
pages = {437-447},
zbl = {36.0282.02},
url = {http://dml.mathdoc.fr/item/GDZPPN002260379}
}
Hawkes, H.E. On Quaternion Number-Systems. Mathematische Annalen, Tome 61 (1905) pp. 437-447. http://gdmltest.u-ga.fr/item/GDZPPN002260379/