To cite package ‘biogas’ in publications use:

  Hafner S, Rennuit C, Justesen C, Lojborg N, Mortensen J, Ohlsson J
  (2024). _biogas: Process Biogas Data and Predict Biogas Production_.
  R package version 1.61, <https://CRAN.R-project.org/package=biogas>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {biogas: Process Biogas Data and Predict Biogas Production},
    author = {Sasha D. Hafner and Charlotte Rennuit and Camilla Justesen and Nanna Lojborg and Jacob Mortensen and Jonas Ohlsson},
    year = {2024},
    note = {R package version 1.61},
    url = {https://CRAN.R-project.org/package=biogas},
  }