To cite package ‘mutator’ in publications use:

  Donat-Bouillud P, Amandykov A (2026). _mutator: Mutation Testing_. R
  package version 0.1.1.9000, <https://github.com/prl-prg/mutator>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {mutator: Mutation Testing},
    author = {Pierre Donat-Bouillud and Assanali Amandykov},
    year = {2026},
    note = {R package version 0.1.1.9000},
    url = {https://github.com/prl-prg/mutator},
  }