To cite package ‘regions’ in publications use:

Antal D (2022). regions: Processing Regional Statistics. R package version 0.1.8, https://github.com/ropengov/regions.

Corresponding BibTeX entry:

  @Manual{,
    title = {regions: Processing Regional Statistics},
    author = {Daniel Antal},
    year = {2022},
    note = {R package version 0.1.8},
    url = {https://github.com/ropengov/regions},
  }