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@article{MS2_1986__59_166992, author = {Rainer Weissauer}, title = {The {Witt} group of quadratic characters.}, journal = {Mathematica Scandinavica}, pages = {71--92}, publisher = {mathdoc}, volume = {59}, year = {1986}, zbl = {0597.10020}, url = {http://geodesic.mathdoc.fr/item/MS2_1986__59_166992/} }
Rainer Weissauer. The Witt group of quadratic characters.. Mathematica Scandinavica, Tome 59 (1986), pp. 71-92. http://geodesic.mathdoc.fr/item/MS2_1986__59_166992/