%0 Journal Article %A Parmenter, M. M. %A Spiegel, E. %A Stewart, P. N. %T The Periodic Radical of Group Rings and Incidence Algebras %J Canadian mathematical bulletin %D 1998 %P 481-487 %V 41 %N 4 %U http://geodesic.mathdoc.fr/articles/10.4153/CMB-1998-063-4/ %R 10.4153/CMB-1998-063-4 %F 10_4153_CMB_1998_063_4