To cite package ‘GDPuc’ in publications use:

Koch J (2025). GDPuc: Easily Convert GDP Data. R package version 1.6.1, https://github.com/pik-piam/gdpuc.

Corresponding BibTeX entry:

  @Manual{,
    title = {GDPuc: Easily Convert GDP Data},
    author = {Johannes Koch},
    year = {2025},
    note = {R package version 1.6.1},
    url = {https://github.com/pik-piam/gdpuc},
  }