@article{1183494161,
author = {Albert, A. A.},
title = {A necessary and sufficient condition for
the non-equivalence of any two
rational generalized quaternion
division algebras},
journal = {Bull. Amer. Math. Soc.},
volume = {36},
number = {11},
year = {1930},
pages = { 535-540},
language = {en},
url = {http://dml.mathdoc.fr/item/1183494161}
}
Albert, A. A. A necessary and sufficient condition for
the non-equivalence of any two
rational generalized quaternion
division algebras. Bull. Amer. Math. Soc., Tome 36 (1930) no. 11, pp. 535-540. http://gdmltest.u-ga.fr/item/1183494161/