@misc{indiciae457d9fa0f804,
  title = {Denning of grizzly bears in the Yellowstone National Park area},
  author = {Steven L. Judd and Richard R. Knight and Bonnie M. Blanchard},
  year = {1986},
  doi = {10.2307/3872814},
  url = {https://pubs.usgs.gov/publication/70121243},
  note = {Source identifier: 70121243}
}