To cite package ‘functional’ in publications use:

  Danenberg P (2026). _functional: Curry, Compose, and Other
  Higher-Order Functions_. R package version 0.7,
  <https://github.com/klutometis/r-functional>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {functional: Curry, Compose, and Other Higher-Order Functions},
    author = {Peter Danenberg},
    year = {2026},
    note = {R package version 0.7},
    url = {https://github.com/klutometis/r-functional},
  }
