@article{GDZPPN001264915,
title = {Identities over the two-element alphabet.},
journal = {Semigroup forum},
volume = {53},
year = {1996},
pages = {365-380},
url = {http://dml.mathdoc.fr/item/GDZPPN001264915}
}
Ciric, M.; Bogdonovic, S. Identities over the two-element alphabet.. Semigroup forum, Tome 53 (1996) pp. 365-380. http://gdmltest.u-ga.fr/item/GDZPPN001264915/