To cite package ‘pairwise’ in publications use:

  Heine J (2026). _pairwise: Rasch Model Parameters by Pairwise
  Algorithm_. R package version 0.6.4-0,
  <https://CRAN.R-project.org/package=pairwise>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {{pairwise}: Rasch Model Parameters by Pairwise Algorithm},
    author = {Joerg-Henrik Heine},
    year = {2026},
    note = {R package version 0.6.4-0},
    url = {https://CRAN.R-project.org/package=pairwise},
  }