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An application of this paper to the computation ofW(X) will appear in a further paper
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Fernández-Carmena, F. On the injectivity of the map of the Witt group of a scheme into the Witt group of its function field. Math. Ann. 277, 453–468 (1987). https://doi.org/10.1007/BF01458326
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DOI: https://doi.org/10.1007/BF01458326