To cite package ‘citation’ in publications use:

  Dietrich J, Leoncio W (2024). _citation: Software Citation Tools_.
  doi:10.5281/zenodo.3813429 <https://doi.org/10.5281/zenodo.3813429>,
  R package version 0.12.0.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {citation: Software Citation Tools},
    author = {Jan Philipp Dietrich and Waldir Leoncio},
    year = {2024},
    note = {R package version 0.12.0},
    doi = {10.5281/zenodo.3813429},
  }