%0 Journal Article %A Aghdam, A. M. %A Karimi, F. %A Najafizadeh, A. %T On the subgroups of completely decomposable torsion-free groups that are ideals in every ring %J Archivum mathematicum %D 2012 %P 107-112 %V 48 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.5817/AM2012-2-107/ %R 10.5817/AM2012-2-107 %G en %F 10_5817_AM2012_2_107