@article{GDZPPN001260227, title = {On regular semigroup rings.}, journal = {Semigroup forum}, volume = {40}, year = {1990}, pages = {113-114}, zbl = {0683.20052}, url = {http://dml.mathdoc.fr/item/GDZPPN001260227} }
Kelarev, A.V. On regular semigroup rings.. Semigroup forum, Tome 40 (1990) pp. 113-114. http://gdmltest.u-ga.fr/item/GDZPPN001260227/