To cite package ‘ipbase’ in publications use:

Kukacka D (2023). ipbase: Client for the 'ipbase.com' IP Geolocation API. R package version 0.1.1, https://CRAN.R-project.org/package=ipbase.

Corresponding BibTeX entry:

  @Manual{,
    title = {ipbase: Client for the 'ipbase.com' IP Geolocation API},
    author = {Dominik Kukacka},
    year = {2023},
    note = {R package version 0.1.1},
    url = {https://CRAN.R-project.org/package=ipbase},
  }