To cite package ‘audubon’ in publications use:

  Kato A (2024). _audubon: Japanese Text Processing Tools_. R package
  version 0.5.2, , <https://github.com/paithiov909/audubon>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {audubon: Japanese Text Processing Tools},
    author = {Akiru Kato},
    year = {2024},
    note = {R package version 0.5.2, 
},
    url = {https://github.com/paithiov909/audubon},
  }