%0 Journal Article %A W. KEITH NICHOLSON %T Rings whose Elements are Quasi-Regular or Regular %J Aequationes mathematicae %D 1973 %P 64-70 %V 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/AM2_1973__9_136325/ %F AM2_1973__9_136325