@article{JRAM_1980__318_152272,
     author = {Robert C. Valentini and Manohar L. Madan},
     title = {A {Hauptsatz} of {L.} {E.} {Dickson} and {Artin-Schreier} extensions.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {156--177},
     publisher = {mathdoc},
     volume = {318},
     year = {1980},
     zbl = {0426.12016},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1980__318_152272/}
}