@article{1250129188, author = {Johnson, Jon L.}, title = {The graded ring $R[X\_1,\dots,X\_n]$}, journal = {Rocky Mountain J. Math.}, volume = {9}, number = {4}, year = {1979}, pages = { 415-424}, language = {en}, url = {http://dml.mathdoc.fr/item/1250129188} }
Johnson, Jon L. The graded ring $R[X_1,\dots,X_n]$. Rocky Mountain J. Math., Tome 9 (1979) no. 4, pp. 415-424. http://gdmltest.u-ga.fr/item/1250129188/