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@article{SF_1989__39_2_134990, author = {P.M. Edwards}, title = {Maximizing a congruence with respect to its partition of idempotents.}, journal = {Semigroup forum}, pages = {257--262}, publisher = {mathdoc}, volume = {39}, number = {2}, year = {1989}, zbl = {0662.20047}, url = {http://geodesic.mathdoc.fr/item/SF_1989__39_2_134990/} }
P.M. Edwards. Maximizing a congruence with respect to its partition of idempotents.. Semigroup forum, Tome 39 (1989) no. 2, pp. 257-262. http://geodesic.mathdoc.fr/item/SF_1989__39_2_134990/