To cite package ‘tau’ in publications use:

  Buchta C, Hornik K, Feinerer I, Meyer D (2024). _tau: Text Analysis
  Utilities_. R package version 0.0-26,
  <https://CRAN.R-project.org/package=tau>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {tau: Text Analysis Utilities},
    author = {Christian Buchta and Kurt Hornik and Ingo Feinerer and David Meyer},
    year = {2024},
    note = {R package version 0.0-26},
    url = {https://CRAN.R-project.org/package=tau},
  }