To cite package ‘covid19swiss’ in publications use:

Krispin R (2021). covid19swiss: COVID-19 Cases in Switzerland and Principality of Liechtenstein. R package version 0.1.0, https://github.com/covid19r/covid19swiss.

Corresponding BibTeX entry:

  @Manual{,
    title = {covid19swiss: COVID-19 Cases in Switzerland and
      Principality of Liechtenstein},
    author = {Rami Krispin},
    year = {2021},
    note = {R package version 0.1.0},
    url = {https://github.com/covid19r/covid19swiss},
  }