@article{SF_1997__54_2_135508,
     author = {G. Mashevitzky},
     title = {The pseudovariety generated by completely 0-simple semigroups.},
     journal = {Semigroup forum},
     pages = {83--91},
     publisher = {mathdoc},
     volume = {54},
     number = {2},
     year = {1997},
     zbl = {0866.20047},
     url = {http://geodesic.mathdoc.fr/item/SF_1997__54_2_135508/}
}