To cite pwrss in publications use:

Bulus M (2023). pwrss: Statistical Power and Sample Size Calculation Tools. R package version 0.3.1, https://CRAN.R-project.org/package=pwrss.

Corresponding BibTeX entry:

  @Manual{,
    title = {{pwrss}: Statistical Power and Sample Size Calculation
      Tools},
    author = {Metin Bulus},
    note = {R package version 0.3.1},
    year = {2023},
    url = {https://CRAN.R-project.org/package=pwrss},
  }