To cite package ‘qvcalc’ in publications use:

Firth D (2025). qvcalc: Quasi Variances for Factor Effects in Statistical Models. R package version 1.0.4, https://github.com/davidfirth/qvcalc.

Corresponding BibTeX entry:

  @Manual{,
    title = {qvcalc: Quasi Variances for Factor Effects in Statistical
      Models},
    author = {David Firth},
    year = {2025},
    note = {R package version 1.0.4},
    url = {https://github.com/davidfirth/qvcalc},
  }