To cite the circular regression framework implemented in INLAcircular:

  Ye X, Van Niekerk J, Rue H (2026). “A Bayesian regression framework
  for circular models with INLA.” doi:10.48550/arXiv.2602.08413
  <https://doi.org/10.48550/arXiv.2602.08413>. arXiv preprint,
  <https://arxiv.org/abs/2602.08413>.

A BibTeX entry for LaTeX users is

  @Misc{,
    title = {A Bayesian regression framework for circular models with INLA},
    author = {Xiang Ye and Janet {Van Niekerk} and Haavard Rue},
    year = {2026},
    doi = {10.48550/arXiv.2602.08413},
    url = {https://arxiv.org/abs/2602.08413},
    note = {arXiv preprint},
  }

To cite the penalized-complexity priors:

  Ye X, Van Niekerk J, Rue H (2026). “Penalizing complexity priors for
  Bayesian inference of circular models.” _Statistical Modelling_.
  doi:10.1177/1471082X261453677
  <https://doi.org/10.1177/1471082X261453677>.
  <https://doi.org/10.1177/1471082X261453677>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Penalizing complexity priors for Bayesian inference of circular models},
    author = {Xiang Ye and Janet {Van Niekerk} and Håvard Rue},
    journal = {Statistical Modelling},
    year = {2026},
    doi = {10.1177/1471082X261453677},
    url = {https://doi.org/10.1177/1471082X261453677},
  }