To cite package ‘PEcAn.GDAY’ in publications use:

De Kauwe M, Gardella T (2026). PEcAn.GDAY: PEcAn Package for Integration of the GDAY Model. R package version 1.7.5.9000, https://github.com/pecanproject/pecan.

Corresponding BibTeX entry:

  @Manual{,
    title = {PEcAn.GDAY: PEcAn Package for Integration of the GDAY
      Model},
    author = {Martin {De Kauwe} and Tony Gardella},
    year = {2026},
    note = {R package version 1.7.5.9000},
    url = {https://github.com/pecanproject/pecan},
  }