Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1977__154_172506, author = {Murray Schacher and Burton Fein}, title = {Ulm {Invariants} of the {Brauer} {Group} of a {Field.}}, journal = {Mathematische Zeitschrift}, pages = {41--50}, publisher = {mathdoc}, volume = {154}, year = {1977}, zbl = {0334.20019}, url = {http://geodesic.mathdoc.fr/item/MZ_1977__154_172506/} }
Murray Schacher; Burton Fein. Ulm Invariants of the Brauer Group of a Field.. Mathematische Zeitschrift, Tome 154 (1977), pp. 41-50. http://geodesic.mathdoc.fr/item/MZ_1977__154_172506/