To cite package ‘cafast’ in publications use:

  Smolen C (2026). _cafast: Fast Companions to the 'CAs' Package for
  Covering Arrays_. R package version 0.1.0,
  <https://CRAN.R-project.org/package=cafast>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {cafast: Fast Companions to the 'CAs' Package for Covering Arrays},
    author = {Christopher Smolen},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=cafast},
  }