To cite package 'secrRFS' in publications use:

  Efford, M. G. (2025). secrRFS: Spatially Explicit Capture-Recapture
  Random Field Simulator. R package version 1.0.1.
  https://github.com/MurrayEfford/secrRFS

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {secrRFS: Spatially Explicit Capture-Recapture Random Field Simulator},
    author = {Murray Efford},
    year = {2025},
    note = {R package version 1.0.1},
    url = {https://github.com/MurrayEfford/secrRFS},
  }