TY  - RPRT
TI  - Monitoring grizzly bear population trends
AU  - L.L. Eberhardt
AU  - R.R. Knight
AU  - B.M. Blanchard
PY  - 1986
DO  - 10.2307/3800971
UR  - https://pubs.usgs.gov/publication/70121226
ID  - 70121226
ER  -