To cite package ‘g.ridge’ in publications use:

  Emura T (2023). _g.ridge: Generalized Ridge Regression for Linear
  Models_. R package version 1.0,
  <https://CRAN.R-project.org/package=g.ridge>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {g.ridge: Generalized Ridge Regression for Linear Models},
    author = {Takeshi Emura},
    year = {2023},
    note = {R package version 1.0},
    url = {https://CRAN.R-project.org/package=g.ridge},
  }