@article{MM2_1989__64_2_155410,
     author = {C. Greither},
     title = {Unramified {Kummer} extensions of prime power degree.},
     journal = {Manuscripta mathematica},
     pages = {261--290},
     publisher = {mathdoc},
     volume = {64},
     number = {2},
     year = {1989},
     zbl = {0705.13004},
     url = {http://geodesic.mathdoc.fr/item/MM2_1989__64_2_155410/}
}