Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1991__208_3_174314, author = {B. Erez}, title = {The {Galois} sturcture of the square root of the inverse different.}, journal = {Mathematische Zeitschrift}, pages = {239--256}, publisher = {mathdoc}, volume = {208}, number = {3}, year = {1991}, zbl = {0713.11078}, url = {http://geodesic.mathdoc.fr/item/MZ_1991__208_3_174314/} }
B. Erez. The Galois sturcture of the square root of the inverse different.. Mathematische Zeitschrift, Tome 208 (1991) no. 3, pp. 239-256. http://geodesic.mathdoc.fr/item/MZ_1991__208_3_174314/