To cite package ‘valh’ in publications use:

Giraud T, Viry M (2026). valh: Interface Between R and the OpenStreetMap-Based Routing Service 'Valhalla'. R package version 0.2.0, https://github.com/riatelab/valh.

Corresponding BibTeX entry:

  @Manual{,
    title = {valh: Interface Between R and the OpenStreetMap-Based
      Routing Service 'Valhalla'},
    author = {Timothée Giraud and Matthieu Viry},
    year = {2026},
    note = {R package version 0.2.0},
    url = {https://github.com/riatelab/valh},
  }