@article{SF_1996__53_2_135471,
     author = {F. Li},
     title = {Regularity of semigroup rings.},
     journal = {Semigroup forum},
     pages = {72--81},
     publisher = {mathdoc},
     volume = {53},
     number = {2},
     year = {1996},
     zbl = {0852.20056},
     url = {http://geodesic.mathdoc.fr/item/SF_1996__53_2_135471/}
}