To cite package ‘ordgam’ in publications use:

Lambert P (2023). ordgam: Additive Model for Ordinal Data using Laplace P-Splines. R package version 0.9.1, https://github.com/plambertuliege/ordgam.

Corresponding BibTeX entry:

  @Manual{,
    title = {ordgam: Additive Model for Ordinal Data using Laplace
      P-Splines},
    author = {Philippe Lambert},
    year = {2023},
    note = {R package version 0.9.1},
    url = {https://github.com/plambertuliege/ordgam},
  }