To cite the {ufs} package in publications, please use:

  Peters GJY, Gruijters, S (2023). ufs: A collection of utilities. R
  package version 0.5.5. https://ufs.opens.science

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {ufs: A collection of utilities},
    author = {Gjalt-Jorn Ygram Peters and Stefan Gruijters},
    year = {2023},
    note = {R package version 0.5.5},
    url = {https://ufs.opens.science},
  }