To cite package ‘cpp11’ in publications use:

  Vaughan D, Hester J, François R (2026). _cpp11: A C++11 Interface for
  R's C Interface_. R package version 0.5.5.9000,
  <https://github.com/r-lib/cpp11>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {cpp11: A C++11 Interface for R's C Interface},
    author = {Davis Vaughan and Jim Hester and Romain François},
    year = {2026},
    note = {R package version 0.5.5.9000},
    url = {https://github.com/r-lib/cpp11},
  }