@article{02168619,
title = {Powers of a product of commutators as products of squares.},
journal = {International Journal of Mathematics and Mathematical Sciences},
volume = {2004},
year = {2004},
pages = {373-375},
doi = {10.1155/S0161171204304047},
zbl = {1070.20038},
language = {en},
url = {http://dml.mathdoc.fr/item/02168619}
}
Abdollahi, Alireza. Powers of a product of commutators as products of squares.. International Journal of Mathematics and Mathematical Sciences, Tome 2004 (2004) pp. 373-375. doi : 10.1155/S0161171204304047. http://gdmltest.u-ga.fr/item/02168619/