To cite package ‘Tides’ in publications use:

  Cox T, Schepers L (2026). _Tides: Quasi-Periodic Time Series
  Characteristics_. R package version 2.1.1,
  <https://CRAN.R-project.org/package=Tides>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Tides: Quasi-Periodic Time Series Characteristics},
    author = {Tom Cox and Lennert Schepers},
    year = {2026},
    note = {R package version 2.1.1},
    url = {https://CRAN.R-project.org/package=Tides},
  }