@misc{indiciae8abd592d827f,
  title = {Remote identification of polar bear maternal den habitat in northern Alaska},
  author = {George M. Durner and Steven C. Amstrup and Ken J. Ambrosius},
  year = {2001},
  doi = {10.14430/arctic770},
  url = {https://pubs.usgs.gov/publication/70024240},
  note = {Source identifier: 70024240}
}