@misc{indiciae09ad02ac1687,
  title = {Estimating Potential Effects of Hypothetical Oil Spills on Polar Bears},
  author = {Steven C. Amstrup and George M. Durner and T. L. McDonald and W.R. Johnson},
  year = {2006},
  doi = {10.3133/85885},
  url = {https://pubs.usgs.gov/publication/85885},
  note = {Source identifier: 85885}
}