To cite package ‘robRatio’ in publications use:

  Wada K (2025). _robRatio: M-Estimators for Generalized Ratio and
  Linear Regression Models_. R package version 0.1.0,
  <https://github.com/kazwd2008/robratio>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {robRatio: M-Estimators for Generalized Ratio and Linear Regression Models},
    author = {Kazumi Wada},
    year = {2025},
    note = {R package version 0.1.0},
    url = {https://github.com/kazwd2008/robratio},
  }