To cite package ‘rsppfp’ in publications use:

  Vidoni M, Vecchietti A (2024). _rsppfp: R's Shortest Path Problem
  with Forbidden Subpaths_. R package version 1.0.4,
  <https://github.com/melvidoni/rsppfp>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {rsppfp: R's Shortest Path Problem with Forbidden Subpaths},
    author = {Melina Vidoni and Aldo Vecchietti},
    year = {2024},
    note = {R package version 1.0.4},
    url = {https://github.com/melvidoni/rsppfp},
  }