@misc{indiciae8241a12f504d,
  title = {Comparison of methods used to estimate numbers of walruses on sea ice},
  author = {Mark S. Udevitz and James R. Gilbert and Gennadii A. Fedoseev},
  year = {2006},
  doi = {10.1111/j.1748-7692.2001.tb01007.x},
  url = {https://pubs.usgs.gov/publication/70184368},
  note = {Source identifier: 70184368}
}