To cite oldr in publications use:

Mark Myatt, Ernest Guevarra, Pascale Fritsch, Katja Siling (2025). oldr: An Implementation of Rapid Assessment Method for Older People. doi:10.5281/zenodo.7505731, R package version 0.2.3, https://rapidsurveys.io/oldr/.

Corresponding BibTeX entry:

  @Manual{,
    title = {oldr: An Implementation of Rapid Assessment Method for
      Older People},
    author = {{Mark Myatt} and {Ernest Guevarra} and {Pascale Fritsch}
      and {Katja Siling}},
    year = {2025},
    note = {R package version 0.2.3},
    url = {https://rapidsurveys.io/oldr/},
    doi = {10.5281/zenodo.7505731},
  }