To cite fitPS in publications use:

Curran JM (2023). fitPS: Fit Zeta Distributions to Forensic Data. R package version 0.2-4, https://github.com/jmcurran/fitPS.

Corresponding BibTeX entry:

  @Manual{,
    title = {fitPS: Fit Zeta Distributions to Forensic Data},
    author = {J. M. Curran},
    year = {2023},
    note = {R package version 0.2-4},
    url = {https://github.com/jmcurran/fitPS},
  }