@article{SF_1987__36_134886,
     author = {M. Loganathan},
     title = {Regular semigroups with a medial idempotent.},
     journal = {Semigroup forum},
     pages = {69--74},
     publisher = {mathdoc},
     volume = {36},
     year = {1987},
     zbl = {0627.20035},
     url = {http://geodesic.mathdoc.fr/item/SF_1987__36_134886/}
}