@misc{indiciae0970ce2b5922,
  title = {Whitebark pine, grizzly bears, and red squirrels},
  author = {David J. Mattson and Katherine C. Kendall and Daniel P. Reinhart},
  year = {2001},
  url = {https://pubs.usgs.gov/publication/70006556},
  note = {Source identifier: 70006556}
}