To cite package ‘fqardl’ in publications use:

  Alkhalaf M (2026). _fqardl: Fourier ARDL Methods: Quantile,
  Nonlinear, Multi-Threshold & Unit Root Tests_. R package version
  1.0.2, <https://CRAN.R-project.org/package=fqardl>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {fqardl: Fourier ARDL Methods: Quantile, Nonlinear, Multi-Threshold &
Unit Root Tests},
    author = {Muhammad Alkhalaf},
    year = {2026},
    note = {R package version 1.0.2},
    url = {https://CRAN.R-project.org/package=fqardl},
  }