On matrices with non-positive off-diagonal elements and positive principal minors

@article{Fiedler1962OnMW,
  title={On matrices with non-positive off-diagonal elements and positive principal minors},
  author={Miroslav Fiedler and Vlastimil Pt{\'a}k},
  journal={Czechoslovak Mathematical Journal},
  year={1962},
  volume={12},
  pages={382-400}
}
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