%0 Journal Article %A Philip Olin %T Direct multiples and powers of modules %J Fundamenta Mathematicae %D 1971 %P 113-124 %V 73 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-73-2-113-124/ %R 10.4064/fm-73-2-113-124 %G en %F 10_4064_fm_73_2_113_124