To cite package ‘funtimes’ in publications use:

  Lyubchich V, Gel Y, Vishwakarma S (2023). _funtimes: Functions for
  Time Series Analysis_. R package version 9.2,
  <https://github.com/vlyubchich/funtimes>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {funtimes: Functions for Time Series Analysis},
    author = {Vyacheslav Lyubchich and Yulia R. Gel and Srishti Vishwakarma},
    year = {2023},
    note = {R package version 9.2},
    url = {https://github.com/vlyubchich/funtimes},
  }