@article{GDZPPN00125636X,
title = {The least inverse and orthodox congruences on a completely regular semigroup.},
journal = {Semigroup forum},
volume = {26},
year = {1983},
pages = {390-392},
zbl = {0537.20036},
url = {http://dml.mathdoc.fr/item/GDZPPN00125636X}
}
Jones, P.R. The least inverse and orthodox congruences on a completely regular semigroup.. Semigroup forum, Tome 26 (1983) pp. 390-392. http://gdmltest.u-ga.fr/item/GDZPPN00125636X/