To cite crawl in publications:

Johnson DS, London JM, Lea M, Durban JW (2008). “Continuous-time correlated random walk model for animal telemetry data.” Ecology, 89(5), 1208-1215. doi:10.1890/07-1032.1.

Johnson DS, London JM (2018). “crawl: an R package for fitting continuous-time correlated random walk models to animal movement data.” doi:10.5281/zenodo.596464, https://doi.org/10.5281/zenodo.596464.

Corresponding BibTeX entries:

  @Article{,
    title = {Continuous-time correlated random walk model for animal
      telemetry data},
    author = {Devin S. Johnson and Josh M. London and Mary-Anne Lea and
      John W. Durban},
    journal = {Ecology},
    year = {2008},
    volume = {89},
    number = {5},
    pages = {1208-1215},
    doi = {10.1890/07-1032.1},
  }

  @Misc{,
    title = {crawl: an R package for fitting continuous-time correlated
      random walk models to animal movement data},
    author = {Devin S. Johnson and Josh M. London},
    year = {2018},
    doi = {10.5281/zenodo.596464},
    url = {https://doi.org/10.5281/zenodo.596464},
  }