To cite package ‘polars’ in publications use:

  Vink R, Welling S, Shima T, Bacher E (2025). _polars: Lightning-Fast
  'DataFrame' Library_. R package version 0.22.3, ,
  <https://github.com/pola-rs/r-polars>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {polars: Lightning-Fast 'DataFrame' Library},
    author = {Ritchie Vink and Soren Welling and Tatsuya Shima and Etienne Bacher},
    year = {2025},
    note = {R package version 0.22.3, 
},
    url = {https://github.com/pola-rs/r-polars},
  }