To cite package ‘footprint’ in publications use:

Schmidt A, Kulma K (2024). footprint: Calculate Air Travel Emissions. R package version 0.2, https://github.com/acircleda/footprint.

Corresponding BibTeX entry:

  @Manual{,
    title = {footprint: Calculate Air Travel Emissions},
    author = {Anthony Schmidt and Kasia Kulma},
    year = {2024},
    note = {R package version 0.2},
    url = {https://github.com/acircleda/footprint},
  }