To cite package ‘sgolay’ in publications use:

  Oller Moreno S (2023). _sgolay: Efficient Savitzky-Golay Filtering_.
  R package version 1.0.3, <https://github.com/zeehio/sgolay>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {sgolay: Efficient Savitzky-Golay Filtering},
    author = {Sergio {Oller Moreno}},
    year = {2023},
    note = {R package version 1.0.3},
    url = {https://github.com/zeehio/sgolay},
  }