@article{GDZPPN001263285,
title = {Completely regular semigroup varieties generated by Mal'cev products with groups.},
journal = {Semigroup forum},
volume = {48},
year = {1994},
pages = {180-192},
zbl = {0797.20048},
url = {http://dml.mathdoc.fr/item/GDZPPN001263285}
}
Zhang, S. Completely regular semigroup varieties generated by Mal'cev products with groups.. Semigroup forum, Tome 48 (1994) pp. 180-192. http://gdmltest.u-ga.fr/item/GDZPPN001263285/