To cite package ‘cirls’ in publications use:

Masselot P, Gasparrini A (2026). cirls: Constrained Iteratively Reweighted Least Squares. R package version 0.4.0-6, https://github.com/pierremasselot/cirls.

Corresponding BibTeX entry:

  @Manual{,
    title = {cirls: Constrained Iteratively Reweighted Least Squares},
    author = {Pierre Masselot and Antonio Gasparrini},
    year = {2026},
    note = {R package version 0.4.0-6},
    url = {https://github.com/pierremasselot/cirls},
  }