@misc{indiciae2ddb7c05e807,
  title = {An improved procedure for detection and enumeration of walrus signatures in airborne thermal imagery},
  author = {Douglas M. Burn and Mark S. Udevitz and Suzann G. Speckman and R. Bradley Benter},
  year = {2009},
  doi = {10.1016/j.jag.2009.05.004},
  url = {https://pubs.usgs.gov/publication/70003539},
  note = {Source identifier: 70003539}
}