To cite package ‘MixMatrix’ in publications use:

  Thompson G (2024). _MixMatrix: Classification with Matrix Variate
  Normal and t Distributions_. R package version 0.2.8,
  <https://CRAN.R-project.org/package=MixMatrix>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {MixMatrix: Classification with Matrix Variate Normal and t Distributions},
    author = {Geoffrey Thompson},
    year = {2024},
    note = {R package version 0.2.8},
    url = {https://CRAN.R-project.org/package=MixMatrix},
  }