To cite package ‘latrend’ in publications use:

  Den Teuling N (2026). _latrend: A Framework for Clustering
  Longitudinal Data_. R package version 1.6.3,
  <https://github.com/niekdt/latrend>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {latrend: A Framework for Clustering Longitudinal Data},
    author = {Niek {Den Teuling}},
    year = {2026},
    note = {R package version 1.6.3},
    url = {https://github.com/niekdt/latrend},
  }