@article{JRAM_1992__427_153420,
     author = {Daqing Wan},
     title = {Hilbert sets and zeta functions over finite fields.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {193--208},
     year = {1992},
     volume = {427},
     zbl = {0759.11022},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1992__427_153420/}
}