@misc{indiciaee55761751234,
  title = {Inferring the absence of a species: A case study of snakes},
  author = {M. Kery},
  year = {2002},
  doi = {10.2307/3803165},
  url = {https://pubs.usgs.gov/publication/5224135},
  note = {Source identifier: 5224135}
}