@misc{indiciaec7d6b482fc20,
  title = {Mapping polar bear maternal denning habitat in the National Petroleum Reserve -- Alaska with an IfSAR digital terrain model},
  author = {George M. Durner and Kristin S. Simac and Steven C. Amstrup},
  year = {2013},
  doi = {10.14430/arctic4291},
  url = {https://pubs.usgs.gov/publication/70045517},
  note = {Source identifier: 70045517}
}