TY  - RPRT
TI  - Use of sulfur and nitrogen stable isotopes to determine the importance of whitebark pine nuts to Yellowstone grizzly bears
AU  - L.A. Felicetti
AU  - C.C. Schwartz
AU  - R. O. Rye
AU  - M.A. Haroldson
AU  - K.A. Gunther
AU  - D.L. Phillips
AU  - C.T. Robbins
PY  - 2003
DO  - 10.1139/z03-054
UR  - https://pubs.usgs.gov/publication/70025628
ID  - 70025628
ER  -