To cite pairwiseLLM, use:

  Mercer, S. H. (2026). *pairwiseLLM: Pairwise comparison tools for
  large language model-based writing evaluation* (Version 1.3.0) [R
  package; Computer software]. Comprehensive R Archive Network.
  https://doi.org/10.32614/CRAN.package.pairwiseLLM

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {pairwiseLLM: Pairwise comparison tools for large language model-based writing evaluation},
    author = {Sterett H. Mercer},
    year = {2026},
    note = {R package version 1.3.0},
    url = {https://doi.org/10.32614/CRAN.package.pairwiseLLM},
    organization = {Comprehensive R Archive Network},
  }