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@article{SF_1972__5_133941, author = {G.R. Baird}, title = {On a sublattice- of the lattice of congruences on a 0-regular semigroup.}, journal = {Semigroup forum}, pages = {228--235}, publisher = {mathdoc}, volume = {5}, year = {1972}, zbl = {0265.20059}, url = {http://geodesic.mathdoc.fr/item/SF_1972__5_133941/} }
G.R. Baird. On a sublattice- of the lattice of congruences on a 0-regular semigroup.. Semigroup forum, Tome 5 (1972), pp. 228-235. http://geodesic.mathdoc.fr/item/SF_1972__5_133941/