To cite BFF in publications use:

Shudde R, Bartoš F, Datta S, Guha R, Pramanik S, Johnson V (2023). BFF: An R package to calculate Bayes Factor Functions. R package version 4.4.2, https://github.com/rshudde/BFF.

Corresponding BibTeX entry:

  @Manual{,
    title = {BFF: {An} {R} package to calculate Bayes Factor
      Functions},
    author = {Rachael Shudde and František Bartoš and Saptati Datta and
      Riana Guha and Sandy Pramanik and Valen Johnson},
    year = {2023},
    note = {R package version 4.4.2},
    url = {https://github.com/rshudde/BFF},
  }