To cite the biometrics package in publications use:

  Salas-Eljatib C., Campos N., and Marivil M. 2026. biometrics: A
  Package for Biometrics and Modelling. R package version 1.0.4
  https://doi.org/10.32614/CRAN.package.biometrics

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {{biometrics: A Package for Biometrics and Modelling}},
    author = {C. Salas-Eljatib and N. Campos and M. Marivil},
    year = {2026},
    note = {R package version 1.0.4},
    doi = {10.32614/CRAN.package.biometrics},
    url = {https://CRAN.R-project.org/package=biometrics},
  }