@article{GDZPPN002439409, title = {The Galois sturcture of the square root of the inverse different.}, journal = {Mathematische Zeitschrift}, volume = {207}, year = {1991}, pages = {239-256}, zbl = {0713.11078}, url = {http://dml.mathdoc.fr/item/GDZPPN002439409} }
Erez, B. The Galois sturcture of the square root of the inverse different.. Mathematische Zeitschrift, Tome 207 (1991) pp. 239-256. http://gdmltest.u-ga.fr/item/GDZPPN002439409/