To cite package ‘rater’ in publications use:

  Pullin J, Vukcevic D (2025). _rater: Statistical Models of Repeated
  Categorical Rating Data_. R package version 1.3.2,
  <https://CRAN.R-project.org/package=rater>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rater: Statistical Models of Repeated Categorical Rating Data},
    author = {Jeffrey Pullin and Damjan Vukcevic},
    year = {2025},
    note = {R package version 1.3.2},
    url = {https://CRAN.R-project.org/package=rater},
  }