@article{00969294, title = {Skew semigroup rings.}, journal = {Beitr\"age zur Algebra und Geometrie}, volume = {37}, year = {1996}, pages = {209-230}, zbl = {0867.16014}, language = {en}, url = {http://dml.mathdoc.fr/item/00969294} }
Abrams, Gene; Menini, Claudia. Skew semigroup rings.. Beiträge zur Algebra und Geometrie, Tome 37 (1996) pp. 209-230. http://gdmltest.u-ga.fr/item/00969294/