%0 Journal Article %A C. Greither %T Unramified Kummer extensions of prime power degree. %J Manuscripta mathematica %D 1989 %P 261-290 %V 64 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1989__64_2_155410/ %F MM2_1989__64_2_155410