@article{GDZPPN002488701,
title = {Two Congruence Lattices of Completely Simple Semigroups.},
journal = {Monatshefte f\"ur Mathematik},
volume = {116},
year = {1993},
pages = {287-298},
zbl = {0811.20055},
url = {http://dml.mathdoc.fr/item/GDZPPN002488701}
}
Petrich, Mario. Two Congruence Lattices of Completely Simple Semigroups.. Monatshefte für Mathematik, Tome 116 (1993) pp. 287-298. http://gdmltest.u-ga.fr/item/GDZPPN002488701/