Kindly cite the hetu R package as follows:

Kantanen P, Magnusson M, Paananen J, Lahti L (2024). “hetu: Structural Handling of Finnish Personal Identity Codes.” doi:10.32614/CRAN.package.hetu, R package version 1.1.0, https://github.com/rOpenGov/hetu.

Many thanks for all contributors!

Corresponding BibTeX entry:

  @Misc{,
    title = {hetu: Structural Handling of Finnish Personal Identity
      Codes},
    author = {Pyry Kantanen and Mans Magnusson and Jussi Paananen and
      Leo Lahti},
    doi = {10.32614/CRAN.package.hetu},
    url = {https://github.com/rOpenGov/hetu},
    year = {2024},
    note = {R package version 1.1.0},
  }