To cite package ‘fca’ in publications use:

Grueebler E, Unterfinger M (2021). fca: Floating Catchment Area (FCA) Methods to Calculate Spatial Accessibility. R package version 0.1.0, https://github.com/egrueebler/fca.

Corresponding BibTeX entry:

  @Manual{,
    title = {fca: Floating Catchment Area (FCA) Methods to Calculate
      Spatial Accessibility},
    author = {Etienne Grueebler and Merlin Unterfinger},
    year = {2021},
    note = {R package version 0.1.0},
    url = {https://github.com/egrueebler/fca},
  }