@article{GDZPPN002400200,
title = {Ringe mit x(yz) = (yx)z.},
journal = {Mathematische Zeitschrift},
volume = {99},
year = {1967},
pages = {400-404},
zbl = {0189.33201},
url = {http://dml.mathdoc.fr/item/GDZPPN002400200}
}
Thedy, Armin. Ringe mit x(yz) = (yx)z.. Mathematische Zeitschrift, Tome 99 (1967) pp. 400-404. http://gdmltest.u-ga.fr/item/GDZPPN002400200/