@article{GDZPPN001250558, title = {Maximal right congruences on semigroups.}, journal = {Semigroup forum}, volume = {11}, year = {1975}, pages = {139-150}, zbl = {0303.20044}, url = {http://dml.mathdoc.fr/item/GDZPPN001250558} }
Arendt, B.D. Maximal right congruences on semigroups.. Semigroup forum, Tome 11 (1975) pp. 139-150. http://gdmltest.u-ga.fr/item/GDZPPN001250558/