To cite package ‘certegis’ in publications use:

Berends MS, Hassing EEA, Dijkstra E (2026). certegis: A Certe R Package for Geographic Information Science. R package version 1.6.1, https://github.com/certe-medical-epidemiology/certegis.

Corresponding BibTeX entry:

  @Manual{,
    title = {certegis: A Certe R Package for Geographic Information
      Science},
    author = {Matthijs S. Berends and Erwin E. A. Hassing and Erwin
      Dijkstra},
    year = {2026},
    note = {R package version 1.6.1},
    url = {https://github.com/certe-medical-epidemiology/certegis},
  }