To cite package ‘esaps’ in publications use:

Schmidt N (2021). esaps: Indicators of Electoral Systems and Party Systems. R package version 0.2.2, https://github.com/nicolas-schmidt/esaps.

Corresponding BibTeX entry:

  @Manual{,
    title = {esaps: Indicators of Electoral Systems and Party Systems},
    author = {Nicolas Schmidt},
    year = {2021},
    note = {R package version 0.2.2},
    url = {https://github.com/nicolas-schmidt/esaps},
  }