%0 Journal Article %A Gorman, Howard E. %T Radical Regularity in Differential Rings %J Canadian journal of mathematics %D 1971 %P 197-201 %V 23 %N 2 %U http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-019-7/ %R 10.4153/CJM-1971-019-7 %F 10_4153_CJM_1971_019_7