@article{SF_1970__1_133794,
     author = {J.C. Meakin},
     title = {Congruences on regular semigroups.},
     journal = {Semigroup forum},
     pages = {232--235},
     year = {1970},
     volume = {1},
     zbl = {0206.30402},
     url = {http://geodesic.mathdoc.fr/item/SF_1970__1_133794/}
}