Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{JRAM_1970__242_151017, author = {Paulo Ribenboim and Tor Gulliksen}, title = {An elementary note on group-rings.}, journal = {Journal f\"ur die reine und angewandte Mathematik}, pages = {148--162}, publisher = {mathdoc}, volume = {242}, year = {1970}, zbl = {0219.16008}, url = {http://geodesic.mathdoc.fr/item/JRAM_1970__242_151017/} }
Paulo Ribenboim; Tor Gulliksen. An elementary note on group-rings.. Journal für die reine und angewandte Mathematik, Tome 242 (1970), pp. 148-162. http://geodesic.mathdoc.fr/item/JRAM_1970__242_151017/