To cite package ‘admix’ in publications use:

  Milhaud X (2024). _admix: Package Admix for Admixture (aka
  Contamination) Models_. R package version 2.3.3,
  <https://github.com/xaviermilhaud/admix-rpackage>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {admix: Package Admix for Admixture (aka Contamination) Models},
    author = {Xavier Milhaud},
    year = {2024},
    note = {R package version 2.3.3},
    url = {https://github.com/xaviermilhaud/admix-rpackage},
  }