%0 Journal Article %A Richardson, J. S. %T Primitive idempotents and the socle in group rings of periodic abelian groups %J Compositio Mathematica %D 1976 %P 203-223 %V 32 %N 2 %I Noordhoff International Publishing %U http://www.numdam.org/item/CM_1976__32_2_203_0/ %G en %F CM_1976__32_2_203_0