To cite package ‘swash’ in publications use:

  Wieland T (2026). _swash: Health Geography Toolbox for Model-Based
  Analysis of Infections Panel Data_. R package version 2.0.1,
  <https://CRAN.R-project.org/package=swash>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {swash: Health Geography Toolbox for Model-Based Analysis of Infections
Panel Data},
    author = {Thomas Wieland},
    year = {2026},
    note = {R package version 2.0.1},
    url = {https://CRAN.R-project.org/package=swash},
  }