To cite package ‘crownmetrics’ in publications use:

Costa S, Machado G (2026). crownmetrics: Tree Crown Shape and Morphometric Parameters. R package version 0.1.0, https://github.com/sergiocostafh/crownmetrics.

Corresponding BibTeX entry:

  @Manual{,
    title = {crownmetrics: Tree Crown Shape and Morphometric
      Parameters},
    author = {Sergio Costa and Gilmara Machado},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://github.com/sergiocostafh/crownmetrics},
  }