To cite package ‘gridmaker’ in publications use:

  Kotov E (2025). _gridmaker: Create INSPIRE-compliant grids with IDs_.
  <https://github.com/e-kotov/gridmaker>.

A BibTeX entry for LaTeX users is

  @Manual{gridmaker,
    title = {gridmaker: Create INSPIRE-compliant grids with IDs},
    author = {Egor Kotov},
    year = {2025},
    url = {https://github.com/e-kotov/gridmaker},
  }