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@article{MAN_1983__264_163766, author = {Tauno Mets\"ankyl\"a}, title = {An {Upper} {Bound} for the {...-Invariant} of {Imaginary} {Abelian} {Fields.}}, journal = {Mathematische Annalen}, pages = {5--8}, publisher = {mathdoc}, volume = {264}, year = {1983}, zbl = {0497.12002}, url = {http://geodesic.mathdoc.fr/item/MAN_1983__264_163766/} }
Tauno Metsänkylä. An Upper Bound for the ...-Invariant of Imaginary Abelian Fields.. Mathematische Annalen, Tome 264 (1983), pp. 5-8. http://geodesic.mathdoc.fr/item/MAN_1983__264_163766/