@article{MZ_1991__208_3_174325,
     author = {R.J. Chapman},
     title = {Kummer theory and {Galois} module structure in global function fields.},
     journal = {Mathematische Zeitschrift},
     pages = {375--388},
     publisher = {mathdoc},
     volume = {208},
     number = {3},
     year = {1991},
     zbl = {0724.11054},
     url = {http://geodesic.mathdoc.fr/item/MZ_1991__208_3_174325/}
}