To cite pladdrr in publications use:

  Nylén, Fredrik, Skotare, Tomas & von Boer, Johan (2026). pladdrr:
  Direct Access to the Core Algorithms of Praat. R package version
  5.0.5. https://doi.org/10.5281/zenodo.21884217

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {pladdrr: Direct Access to the Core Algorithms of Praat},
    author = {Fredrik Nylén and Tomas Skotare and Johan {von Boer}},
    year = {2026},
    note = {R package version 5.0.5},
    doi = {10.5281/zenodo.21884217},
  }

  Boersma, Paul & Weenink, David (2024). Praat: doing phonetics by
  computer [Computer program]. Version 6.4.47, retrieved from
  https://praat.org/

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Praat: doing phonetics by computer},
    author = {Paul Boersma and David Weenink},
    year = {2024},
    note = {Version 6.4.47},
    url = {https://praat.org/},
  }

Please also cite Praat itself: