To cite package ‘MAPCtools’ in publications use:

  Vatten L (2025). _MAPCtools: Multivariate Age-Period-Cohort (MAPC)
  Modeling for Health Data_. R package version 0.1.0,
  <https://github.com/larsvatten/mapctools>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {MAPCtools: Multivariate Age-Period-Cohort (MAPC) Modeling for Health Data},
    author = {Lars Vatten},
    year = {2025},
    note = {R package version 0.1.0},
    url = {https://github.com/larsvatten/mapctools},
  }