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On the level of skew-fields

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References

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  4. A. Pfister, Zur Darstellung von — 1 als Summe von Quadraten in einem Körper. London J. Math.40, 159–165 (1965).

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  5. A.Tschimmel, Über Anordnungsräume von Schiefkörpern. Thesis Münster 1981.

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Author notes

  1. Winfried Scharlau

    Present address: Mathematisches Institut, Einsteinstraße 62, D-4400, Münster

  2. Angelika Tschimmel

    Present address: Fachbereich Mathematik, Gaußstraße 20, D-5600, Wuppertal 1

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    1. Winfried Scharlau
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    2. Angelika Tschimmel
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    Scharlau, W., Tschimmel, A. On the level of skew-fields. Arch. Math 40, 314–315 (1983). https://doi.org/10.1007/BF01192787

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