@article{SF_1986__33_134792,
     author = {P.G. Trotter},
     title = {Injectives in varieties of completely simple semigroups.},
     journal = {Semigroup forum},
     pages = {47--56},
     publisher = {mathdoc},
     volume = {33},
     year = {1986},
     zbl = {0581.20054},
     url = {http://geodesic.mathdoc.fr/item/SF_1986__33_134792/}
}