To cite package ‘bets.covid19’ in publications use:

Zhao Q, Ju N (2020). bets.covid19: The BETS Model for Early Epidemic Data. R package version 1.0.0, https://github.com/qingyuanzhao/bets.covid19.

Corresponding BibTeX entry:

  @Manual{,
    title = {bets.covid19: The BETS Model for Early Epidemic Data},
    author = {Qingyuan Zhao and Nianqiao Ju},
    year = {2020},
    note = {R package version 1.0.0},
    url = {https://github.com/qingyuanzhao/bets.covid19},
  }