To cite polykde in publications use:

García-Portugués, E. (2026). polykde: Polyspherical Kernel Density Estimation. R package version 1.2.1. https://CRAN.R-project.org/package=polykde

García-Portugués, E. and Meilán-Vila, A. (2025). Kernel density estimation with polyspherical data and its applications. Journal of the American Statistical Association, to appear. https://doi.org/10.1080/01621459.2025.2521898

García-Portugués, E. and Meilán-Vila, A. (2023). Hippocampus shape analysis via skeletal models and kernel smoothing. In Larriba, Y. (Ed.), Statistical Methods at the Forefront of Biomedical Advances, pp. 63-82. Springer, Cham. https://doi.org/10.1007/978-3-031-32729-2_4

Corresponding BibTeX entries:

  @Manual{,
    title = {{polykde}: Polyspherical Kernel Density Estimation},
    author = {Eduardo García-Portugués},
    year = {2026},
    note = {R package version 1.2.1},
    url = {https://CRAN.R-project.org/package=polykde},
  }

  @Article{,
    title = {Kernel density estimation with polyspherical data and its
      applications},
    author = {Eduardo García-Portugués and Andrea Meilán-Vila},
    journal = {Journal of the American Statistical Association},
    year = {2025},
    volume = {to appear},
    url = {https://doi.org/10.1080/01621459.2025.2521898},
  }

  @InCollection{,
    title = {Hippocampus shape analysis via skeletal models and kernel
      smoothing},
    author = {Eduardo García-Portugués and Andrea Meilán-Vila},
    booktitle = {Statistical Methods at the Forefront of Biomedical
      Advances},
    editor = {Yolanda Larriba},
    year = {2023},
    pages = {63--82},
    publisher = {Springer},
    address = {Cham},
    url = {https://doi.org/10.1007/978-3-031-32729-2_4},
  }