@misc{indiciae1fed1a79a0dc,
  title = {Development of airborne remote sensing methods for surveys of Pacific walrus},
  author = {Douglas M. Burn and Mark S. Udevitz and M.A. Webber and Joel L. Garlich-Miller},
  year = {2006},
  url = {https://pubs.usgs.gov/publication/70187781},
  note = {Source identifier: 70187781}
}