To cite package ‘fvfmR’ in publications use:

  Garen J, Arnold P, Crous K (2026). _fvfmR: Chlorophyll Fluorescence
  (Fv/Fm) Analysis of Leaf Disc Images_. R package version 1.0.0,
  <https://CRAN.R-project.org/package=fvfmR>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {fvfmR: Chlorophyll Fluorescence (Fv/Fm) Analysis of Leaf Disc Images},
    author = {Josef Garen and Pieter Arnold and Kristine Crous},
    year = {2026},
    note = {R package version 1.0.0},
    url = {https://CRAN.R-project.org/package=fvfmR},
  }