@article{PPN362162808_0014+dmdlog6, title = {A characterization of dual semigroups without nilpotent ideals.}, journal = {Semigroup forum}, volume = {14}, year = {1977}, pages = {1-6}, zbl = {0393.20045}, url = {http://dml.mathdoc.fr/item/PPN362162808_0014+dmdlog6} }
Steinfeld, O. A characterization of dual semigroups without nilpotent ideals.. Semigroup forum, Tome 14 (1977) pp. 1-6. http://gdmltest.u-ga.fr/item/PPN362162808_0014+dmdlog6/