To cite package ‘sad’ in publications use:

Buschow S (2020). sad: Verify the Scale, Anisotropy and Direction of Weather Forecasts. R package version 0.1.3, https://CRAN.R-project.org/package=sad.

Corresponding BibTeX entry:

  @Manual{,
    title = {sad: Verify the Scale, Anisotropy and Direction of Weather
      Forecasts},
    author = {Sebastian Buschow},
    year = {2020},
    note = {R package version 0.1.3},
    url = {https://CRAN.R-project.org/package=sad},
  }