To cite package ‘areabiplot’ in publications use:

Silva A, Freitas A (2021). areabiplot: Area Biplot. R package version 1.0.0, https://CRAN.R-project.org/package=areabiplot.

Corresponding BibTeX entry:

  @Manual{,
    title = {areabiplot: Area Biplot},
    author = {Alberto Silva and Adelaide Freitas},
    year = {2021},
    note = {R package version 1.0.0},
    url = {https://CRAN.R-project.org/package=areabiplot},
  }