To cite package ‘date4ts’ in publications use:

  Barthelemy T (2026). _date4ts: Wrangle and Modify Ts Object with
  Classic Frequencies and Exact Dates_. R package version 0.1.1.9000,
  <https://github.com/tractortom/date4ts>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {date4ts: Wrangle and Modify Ts Object with Classic Frequencies and Exact
Dates},
    author = {Tanguy Barthelemy},
    year = {2026},
    note = {R package version 0.1.1.9000},
    url = {https://github.com/tractortom/date4ts},
  }