@article{2728,
author = {Saade, Marshall},
title = {A note on some identities equivalent to xy=wz},
journal = {Portugaliae mathematica},
volume = {33},
year = {1974},
pages = {65-67},
zbl = {0273.20042},
mrnumber = {0330323},
language = {en},
url = {http://dml.mathdoc.fr/item/2728}
}
Saade, Marshall. A note on some identities equivalent to xy=wz. Portugaliae mathematica, Tome 33 (1974) pp. 65-67. http://gdmltest.u-ga.fr/item/2728/