TY  - RPRT
TI  - Use of ungulates by Yellowstone grizzly bears Ursus arctos
AU  - D.J. Mattson
PY  - 1997
DO  - 10.1016/s0006-3207(96)00142-5
UR  - https://pubs.usgs.gov/publication/1015713
ID  - 1015713
ER  -