When citing the 'trip' package in publications please include:

Sumner MD (2011). The Tag Location Problem. Ph.D. thesis, University of Tasmania. https://figshare.utas.edu.au/articles/thesis/The_tag_location_problem/23209538.

Sumner MD, Wotherspoon SJ, Hindell MA (2009). “Bayesian estimation of animal movement from archival and satellite tags.” PLoS ONE, 4(10). https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0007324.

Corresponding BibTeX entries:

  @PhdThesis{,
    title = {The Tag Location Problem},
    author = {Michael Damien Sumner},
    year = {2011},
    school = {University of Tasmania},
    url =
      {https://figshare.utas.edu.au/articles/thesis/The_tag_location_problem/23209538},
  }

  @Article{,
    title = {Bayesian estimation of animal movement from archival and
      satellite tags.},
    author = {Michael D. Sumner and Simon J. Wotherspoon and Mark A.
      Hindell},
    journal = {PLoS ONE},
    month = {Jan},
    number = {10},
    publisher = {Public Library of Science},
    volume = {4},
    year = {2009},
    url =
      {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0007324},
  }