%0 Journal Article %A Ecevit, Şule %A Koşan, Muhammet Tamer %T On rings all of whose modules are retractable %J Archivum mathematicum %D 2009 %P 71-74 %V 45 %N 1 %U http://geodesic.mathdoc.fr/item/ARM_2009_45_1_a5/ %G en %F ARM_2009_45_1_a5