@article{Becher2009squar-736,
  year={2009},
  doi={10.1007/s00209-008-0353-2},
  title={Sums of squares in function fields of hyperelliptic curves},
  number={4},
  volume={261},
  journal={Mathematische Zeitschrift},
  pages={829--844},
  author={Becher, Karim Johannes and Van Geel, Jan}
}

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    <dcterms:title>Sums of squares in function fields of hyperelliptic curves</dcterms:title>
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    <dcterms:abstract xml:lang="eng">We study sums of squares, quadratic forms, and related field invariants in a quadratic extension of the rational function field in one variable over a hereditarily pythagorean base field.</dcterms:abstract>
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    <dc:creator>Becher, Karim Johannes</dc:creator>
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