@misc{indiciaef36ab58a3700,
  title = {Coefficients of productivity for Yellowstone's grizzly bear habitat},
  author = {David John Mattson and Kim Barber and Ralene Maw and Roy Renkin},
  year = {2004},
  url = {https://pubs.usgs.gov/publication/bsr20020007},
  note = {Source identifier: bsr20020007}
}