%0 Journal Article %A C. Nastasescu %A F. Van Oystaeyen %T Modules Graded by G-sets. %J Mathematische Zeitschrift %D 1990 %P 605-628 %V 203 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1990__203_3_174150/ %F MZ_1990__203_3_174150