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

  Dietze M, Feng X, Serbin S, Singh S (2025). _PEcAn.photosynthesis:
  PEcAn functions used for leaf-level photosynthesis calculations_. R
  package version 1.7.3.9000, <https://github.com/pecanproject/pecan>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {PEcAn.photosynthesis: PEcAn functions used for leaf-level photosynthesis calculations},
    author = {Mike Dietze and Xiaohui Feng and Shawn Serbin and Shashank Singh},
    year = {2025},
    note = {R package version 1.7.3.9000},
    url = {https://github.com/pecanproject/pecan},
  }