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@article{PORMA_1992__49_4_115799, author = {Gomes, Gracinda M.S.}, title = {Group congruences on eventually inverse semigroups}, journal = {Portugaliae mathematica}, pages = {417--428}, publisher = {mathdoc}, volume = {49}, number = {4}, year = {1992}, mrnumber = {1300576}, zbl = {0805.20058}, language = {en}, url = {http://geodesic.mathdoc.fr/item/PORMA_1992__49_4_115799/} }
Gomes, Gracinda M.S. Group congruences on eventually inverse semigroups. Portugaliae mathematica, Tome 49 (1992) no. 4, pp. 417-428. http://geodesic.mathdoc.fr/item/PORMA_1992__49_4_115799/