To cite hemispheR in publications use:

Chianucci F, Macek M (2023). “hemispheR: an R package for fisheye canopy image analysis.” Agricultural and Forest Meteorology. https://doi.org/10.1016/j.agrformet.2023.109470.

Corresponding BibTeX entry:

  @Article{,
    title = {hemispheR: an R package for fisheye canopy image
      analysis},
    author = {Francesco Chianucci and Martin Macek},
    year = {2023},
    journal = {Agricultural and Forest Meteorology},
    url = {https://doi.org/10.1016/j.agrformet.2023.109470},
  }