@article{GDZPPN001259393, title = {Completely simple and completely 0-simple identities.}, journal = {Semigroup forum}, volume = {37}, year = {1988}, pages = {253-264}, zbl = {0648.20058}, url = {http://dml.mathdoc.fr/item/GDZPPN001259393} }
Maschevitzky, G.I. Completely simple and completely 0-simple identities.. Semigroup forum, Tome 37 (1988) pp. 253-264. http://gdmltest.u-ga.fr/item/GDZPPN001259393/