%0 Journal Article %A Gardner, Barry J. %A Jackett, David R. %T Rings on certain classes of torsion-free Abelian groups %J Commentationes Mathematicae Universitatis Carolinae %D 1976 %P 493-506 %V 17 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1976__17_3_a6/ %G en %F CMUC_1976__17_3_a6