To cite the 'rnnmf' package in publications use:

  Steven E. Pav (2024). rnnmf: Regularized Non-Negative Matrix
  Factorization. R package version 0.3.0.

A BibTeX entry for LaTeX users is

  @Manual{rnnmf-Manual,
    title = {{rnnmf}: Regularized Non-Negative Matrix Factorization},
    author = {Steven E. Pav},
    year = {2024},
    note = {R package version 0.3.0},
    url = {https://github.com/shabbychef/rnnmf},
  }