To cite package ‘permChacko’ in publications use:

  Leoncio W, Ruxton G, Fagerland M (2024). _permChacko: Chacko Test for
  Order-Restriction with Permutation_. R package version 1.0.1.9000,
  <https://github.com/ocbe-uio/permchacko>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {permChacko: Chacko Test for Order-Restriction with Permutation},
    author = {Waldir Leoncio and Graeme Ruxton and Morten Wang Fagerland},
    year = {2024},
    note = {R package version 1.0.1.9000},
    url = {https://github.com/ocbe-uio/permchacko},
  }