To cite SightabilityModel in publications use:
Fieberg JR (2012). “Estimating Population Abundance Using Sightability Models: R SightabilityModel Package.” Journal of Statistical Software, 51(9), 1–20. doi:10.18637/jss.v051.i09.
Corresponding BibTeX entry:
@Article{, title = {Estimating Population Abundance Using Sightability Models: {R} {SightabilityModel} Package}, author = {John R. Fieberg}, journal = {Journal of Statistical Software}, year = {2012}, volume = {51}, number = {9}, pages = {1--20}, doi = {10.18637/jss.v051.i09}, }