@article{GDZPPN001265016,
title = {Regularity of semigroup rings.},
journal = {Semigroup forum},
volume = {53},
year = {1996},
pages = {72-81},
zbl = {0852.20056},
url = {http://dml.mathdoc.fr/item/GDZPPN001265016}
}
Li, F. Regularity of semigroup rings.. Semigroup forum, Tome 53 (1996) pp. 72-81. http://gdmltest.u-ga.fr/item/GDZPPN001265016/