To cite package ‘mda’ in publications use:

  Hastie T, Tibshirani R (2024). _mda: Mixture and Flexible
  Discriminant Analysis_. R package version 0.5-5,
  <https://CRAN.R-project.org/package=mda>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {mda: Mixture and Flexible Discriminant Analysis},
    author = {Trevor Hastie and Robert Tibshirani},
    year = {2024},
    note = {R package version 0.5-5},
    url = {https://CRAN.R-project.org/package=mda},
  }