To cite package ‘ccar3’ in publications use:

  Donnat C, Tuzhilina E, Wu Z (2026). _ccar3: Canonical Correlation
  Analysis via Reduced Rank Regression_. R package version 0.1.1,
  <https://CRAN.R-project.org/package=ccar3>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {ccar3: Canonical Correlation Analysis via Reduced Rank Regression},
    author = {Claire Donnat and Elena Tuzhilina and Zixuan Wu},
    year = {2026},
    note = {R package version 0.1.1},
    url = {https://CRAN.R-project.org/package=ccar3},
  }