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@article{MZ_1978__163_172735, author = {Murray Schacher and Burton Fein}, title = {Ulm {Invariants} of the {Brauer} {Group} of a {Field.} {II.}}, journal = {Mathematische Zeitschrift}, pages = {1--4}, publisher = {mathdoc}, volume = {163}, year = {1978}, zbl = {0367.20033}, url = {http://geodesic.mathdoc.fr/item/MZ_1978__163_172735/} }
Murray Schacher; Burton Fein. Ulm Invariants of the Brauer Group of a Field. II.. Mathematische Zeitschrift, Tome 163 (1978), pp. 1-4. http://geodesic.mathdoc.fr/item/MZ_1978__163_172735/