To cite polykde in publications use:

García-Portugués E (2026). polykde: Polyspherical Kernel Density Estimation. doi:10.32614/CRAN.package.polykde. R package version 1.3.0, https://CRAN.R-project.org/package=polykde.

García-Portugués E, Meilán-Vila A (2026). “Kernel density estimation with polyspherical data and its applications.” Journal of the American Statistical Association, 121(553), 427–439. doi:10.1080/01621459.2025.2521898.

García-Portugués E, 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, 63–82. Springer, Cham. doi: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 1.3.0},
    url = {https://CRAN.R-project.org/package=polykde},
    doi = {10.32614/CRAN.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 = {2026},
    volume = {121},
    number = {553},
    pages = {427--439},
    doi = {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},
    doi = {10.1007/978-3-031-32729-2_4},
  }