To cite package ‘pensynth’ in publications use:

van Kesteren E (2026). pensynth: Penalized Synthetic Control Estimation. R package version 0.8.2, https://github.com/vankesteren/pensynth.

Corresponding BibTeX entry:

  @Manual{,
    title = {pensynth: Penalized Synthetic Control Estimation},
    author = {Erik-Jan {van Kesteren}},
    year = {2026},
    note = {R package version 0.8.2},
    url = {https://github.com/vankesteren/pensynth},
  }