To cite package ‘kwb.geoportal’ in publications use:

  Rustler M (2025). _kwb.geoportal: R Package for Getting Spatial Data
  from Berlin Geoportal_. R package version 0.0.0.9000,
  <https://github.com/kwb-r/kwb.geoportal>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {kwb.geoportal: R Package for Getting Spatial Data from Berlin Geoportal},
    author = {Michael Rustler},
    year = {2025},
    note = {R package version 0.0.0.9000},
    url = {https://github.com/kwb-r/kwb.geoportal},
  }