To cite package ‘umweltapir’ in publications use:

Quoß L, Vogel J, Berthold M (2026). umweltapir: Access 'umwelt.info' API. R package version 0.2.3, https://CRAN.R-project.org/package=umweltapir.

Corresponding BibTeX entry:

  @Manual{,
    title = {umweltapir: Access 'umwelt.info' API},
    author = {Luise Quoß and Johannes Vogel and Maximilian Berthold},
    year = {2026},
    note = {R package version 0.2.3},
    url = {https://CRAN.R-project.org/package=umweltapir},
  }