To cite package ‘NLP’ in publications use:

  Hornik K (2024). _NLP: Natural Language Processing Infrastructure_. R
  package version 0.3-2, <https://CRAN.R-project.org/package=NLP>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {NLP: Natural Language Processing Infrastructure},
    author = {Kurt Hornik},
    year = {2024},
    note = {R package version 0.3-2},
    url = {https://CRAN.R-project.org/package=NLP},
  }