@article{mayer2011notes,
  title={Notes on CEPII’s distances measures: The GeoDist database},
  author={Mayer, Thierry and Zignago, Soledad},
  year={2011},
  publisher={CEPII working paper}
}

@article{mayer2002illusory,
  title={Illusory border effects: Distance mismeasurement inflates estimates of home bias in trade},
  author={Mayer, Thierry and Head, Keith},
  year={2002},
  publisher={CEPII working paper}
}
