@article{2814,
author = {Kleinfeld, Erwin and Kleinfeld, Margaret Humm},
title = {Rings of type $(\gamma ,\delta )$ without zero divisors are associative},
journal = {Portugaliae mathematica},
volume = {36},
year = {1977},
pages = {65-77},
zbl = {0407.17002},
mrnumber = {0535225},
language = {en},
url = {http://dml.mathdoc.fr/item/2814}
}
Kleinfeld, Erwin; Kleinfeld, Margaret Humm. Rings of type $(\gamma ,\delta )$ without zero divisors are associative. Portugaliae mathematica, Tome 36 (1977) pp. 65-77. http://gdmltest.u-ga.fr/item/2814/