To cite package ‘xRing’ in publications use:

Campelo F (2025). xRing: Identify and Measure Tree Rings on X-Ray Micro-Density Profiles. R package version 0.1.2, https://CRAN.R-project.org/package=xRing.

Corresponding BibTeX entry:

  @Manual{,
    title = {xRing: Identify and Measure Tree Rings on X-Ray
      Micro-Density Profiles},
    author = {Filipe Campelo},
    year = {2025},
    note = {R package version 0.1.2},
    url = {https://CRAN.R-project.org/package=xRing},
  }