To cite package ‘sacRebleu’ in publications use:

  Koch P (2025). _sacRebleu: Metrics for Assessing the Quality of
  Generated Text_. R package version 0.2.0,
  <https://CRAN.R-project.org/package=sacRebleu>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {sacRebleu: Metrics for Assessing the Quality of Generated Text},
    author = {Philipp Koch},
    year = {2025},
    note = {R package version 0.2.0},
    url = {https://CRAN.R-project.org/package=sacRebleu},
  }