@article{JRAM_1977__296_151932,
     author = {Ph. Revoy},
     title = {Groupes de {Witt} d'un corps de caract\'eristique 2.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {33--36},
     publisher = {mathdoc},
     volume = {296},
     year = {1977},
     zbl = {0356.12023},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1977__296_151932/}
}