@misc{indiciaedad29d4fd32d,
  title = {Standard operating procedures for wild horse and burro double-observer aerial surveys},
  author = {Paul C. Griffin and L. Stefan Ekernas and Kathryn A. Schoenecker and Bruce C. Lubow},
  year = {2020},
  doi = {10.3133/tm2a16},
  url = {https://pubs.usgs.gov/publication/tm2A16},
  note = {Source identifier: tm2A16}
}