@article{JRAM_1996__478_153848,
     author = {Michael Spiess},
     title = {An arithmetic proof of {Pop`s} {Theorem} concerning {Galois} groups of function fields over number fields.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {107--126},
     publisher = {mathdoc},
     volume = {478},
     year = {1996},
     zbl = {0933.11054},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1996__478_153848/}
}