%0 Journal Article %A Szeto, George %T p.p. rings and reduced rings %J Czechoslovak Mathematical Journal %D 1979 %P 53-56 %V 29 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1979.101577/ %R 10.21136/CMJ.1979.101577 %G en %F 10_21136_CMJ_1979_101577