To cite package ‘fqacalc’ in publications use:

  Foxfoot I (2023). _fqacalc: Calculate Floristic Quality Assessment
  Metrics_. R package version 1.1.0,
  <https://CRAN.R-project.org/package=fqacalc>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {fqacalc: Calculate Floristic Quality Assessment Metrics},
    author = {Iris Foxfoot},
    year = {2023},
    note = {R package version 1.1.0},
    url = {https://CRAN.R-project.org/package=fqacalc},
  }