@article{JRAM_1983__339_251720,
     author = {A. Pfister and J.K. Arason},
     title = {Erg\"anzung zur {Arbeit} },
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {163--164},
     publisher = {mathdoc},
     volume = {339},
     year = {1983},
     zbl = {0495.10012},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1983__339_251720/}
}