TY  - RPRT
TI  - Rub tree use and selection by American black bears and grizzly bears in northern Yellowstone National Park
AU  - Nathaniel R. Bowersock
AU  - H. Okada
AU  - Andrea R. Litt
AU  - Kerry A. Gunther
AU  - Frank T. van Manen
PY  - 2022
DO  - 10.2192/ursus-d-21-00009.3
UR  - https://pubs.usgs.gov/publication/70232145
ID  - 70232145
ER  -