To cite package ‘traveltime’ in publications use:

  Ryan GE, Tierney N, Golding N, Weiss DJ (2025). “traveltime: an R
  package to calculate travel time across a landscape from
  user-specified locations.” _Gates Open Research_, *9*(50).
  doi:10.12688/gatesopenres.16356.1
  <https://doi.org/10.12688/gatesopenres.16356.1>.
  <https://doi.org/10.12688/gatesopenres.16356.1>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {traveltime: an R package to calculate travel time across a landscape from user-specified locations},
    author = {Gerard E. Ryan and Nicholas Tierney and Nick Golding and Daniel J. Weiss},
    journal = {Gates Open Research},
    year = {2025},
    volume = {9},
    number = {50},
    doi = {10.12688/gatesopenres.16356.1},
    url = {https://doi.org/10.12688/gatesopenres.16356.1},
  }