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@article{SF_1983__27_134634, author = {P.R. Jones}, title = {The least inverse and orthodox congruences on a completely regular semigroup.}, journal = {Semigroup forum}, pages = {390--392}, publisher = {mathdoc}, volume = {27}, year = {1983}, zbl = {0537.20036}, url = {https://geodesic-test.mathdoc.fr/item/SF_1983__27_134634/} }
P.R. Jones. The least inverse and orthodox congruences on a completely regular semigroup.. Semigroup forum, Tome 27 (1983), pp. 390-392. https://geodesic-test.mathdoc.fr/item/SF_1983__27_134634/