@article{GDZPPN002089971,
title = {Artin-Root Numbers and Normal Integral Bases for Quaternion Fields.},
journal = {Inventiones mathematicae},
volume = {16},
year = {1972},
pages = {143-166},
zbl = {0261.12008},
url = {http://dml.mathdoc.fr/item/GDZPPN002089971}
}
Fröhlich, A. Artin-Root Numbers and Normal Integral Bases for Quaternion Fields.. Inventiones mathematicae, Tome 16 (1972) pp. 143-166. http://gdmltest.u-ga.fr/item/GDZPPN002089971/