@article{00591051,
title = {Completely regular and orthodox congruences on regular semigroups.},
journal = {Publications de l'Institut Math\'ematique. Nouvelle S\'erie},
volume = {53(67)},
year = {1993},
pages = {37-44},
zbl = {0809.20053},
language = {en},
url = {http://dml.mathdoc.fr/item/00591051}
}
Alimpić, Branka P.; Krgović, Dragica N. Completely regular and orthodox congruences on regular semigroups.. Publications de l'Institut Mathématique. Nouvelle Série, Tome 53(67) (1993) pp. 37-44. http://gdmltest.u-ga.fr/item/00591051/