To cite package ‘unrtf’ in publications use:

  Ooms J (2024). _unrtf: Extract Text from Rich Text Format (RTF)
  Documents_. R package version 1.4.7,
  <https://CRAN.R-project.org/package=unrtf>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {unrtf: Extract Text from Rich Text Format (RTF) Documents},
    author = {Jeroen Ooms},
    year = {2024},
    note = {R package version 1.4.7},
    url = {https://CRAN.R-project.org/package=unrtf},
  }