Unbounded asymmetry of stretch factors

@article{Dowdall2014UnboundedAO,
  title={Unbounded asymmetry of stretch factors},
  author={Spencer Dowdall and Ilya Kapovich and Christopher J. Leininger},
  journal={Comptes Rendus Mathematique},
  year={2014},
  volume={352},
  pages={885-887}
}
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