To cite package ‘OPL’ in publications use:

  Brogi F, Guardabascio B, Cerulli G (2025). _OPL: Optimal Policy
  Learning_. R package version 1.0.2,
  <https://CRAN.R-project.org/package=OPL>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {OPL: Optimal Policy Learning},
    author = {Federico Brogi and Barbara Guardabascio and Giovanni Cerulli},
    year = {2025},
    note = {R package version 1.0.2},
    url = {https://CRAN.R-project.org/package=OPL},
  }