To cite package ‘kardl’ in publications use:

  Karamelikli H, Demir H (2026). _kardl: Make Symmetric and Asymmetric
  ARDL Estimations_. R package version 1.3.1,
  <https://github.com/karamelikli/kardl>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {kardl: Make Symmetric and Asymmetric ARDL Estimations},
    author = {Huseyin Karamelikli and Huseyin Utku Demir},
    year = {2026},
    note = {R package version 1.3.1},
    url = {https://github.com/karamelikli/kardl},
  }