@article{SF_1982__24_134555,
     author = {D. LaTorre},
     title = {Group congruences on regular semigroups.},
     journal = {Semigroup forum},
     pages = {327--340},
     year = {1982},
     volume = {24},
     zbl = {0487.20039},
     url = {http://geodesic.mathdoc.fr/item/SF_1982__24_134555/}
}