@article{GDZPPN001262823, title = {*-Simple type A ...-semigroups.}, journal = {Semigroup forum}, volume = {46}, year = {1993}, pages = {135-149}, zbl = {0791.20070}, url = {http://dml.mathdoc.fr/item/GDZPPN001262823} }
Asibong-Ibe, U. *-Simple type A ...-semigroups.. Semigroup forum, Tome 46 (1993) pp. 135-149. http://gdmltest.u-ga.fr/item/GDZPPN001262823/