To cite package ‘roadoi’ in publications use:

Jahn N (2024). roadoi: Find Free Versions of Scholarly Publications via Unpaywall. R package version 0.7.3, https://github.com/ropensci/roadoi.

Corresponding BibTeX entry:

  @Manual{,
    title = {roadoi: Find Free Versions of Scholarly Publications via
      Unpaywall},
    author = {Najko Jahn},
    year = {2024},
    note = {R package version 0.7.3},
    url = {https://github.com/ropensci/roadoi},
  }