To cite package ‘oai’ in publications use:

  Chamberlain S, Bojanowski M (2024). _oai: General Purpose 'Oai-PMH'
  Services Client_. R package version 0.4.1, ,
  <https://github.com/ropensci/oai>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {oai: General Purpose 'Oai-PMH' Services Client},
    author = {Scott Chamberlain and Michal Bojanowski},
    year = {2024},
    note = {R package version 0.4.1, },
    url = {https://github.com/ropensci/oai},
  }