To cite package ‘HRM’ in publications use:

  Happ M, Harrar SW, Bathke AC (2017). “High-dimensional Repeated
  Measures.” _Journal of Statistical Theory and Practice_, *11*(3),
  468-477. doi:10.1080/15598608.2017.1307792
  <https://doi.org/10.1080/15598608.2017.1307792>.
  <https://www.tandfonline.com/doi/full/10.1080/15598608.2017.1307792>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {High-dimensional Repeated Measures.},
    author = {Martin Happ and Solomon W. Harrar and Arne C. Bathke},
    journal = {Journal of Statistical Theory and Practice},
    year = {2017},
    volume = {11},
    number = {3},
    pages = {468-477},
    url = {https://www.tandfonline.com/doi/full/10.1080/15598608.2017.1307792},
    doi = {10.1080/15598608.2017.1307792},
  }