TY  - RPRT
TI  - Variation in trophic shift for stable isotope ratios of carbon, nitrogen, and sulfur
AU  - J.H. McCutchan
AU  - W.M. Lewis
AU  - C. Kendall
AU  - C.C. McGrath
PY  - 2003
DO  - 10.1034/j.1600-0706.2003.12098.x
UR  - https://pubs.usgs.gov/publication/70025829
ID  - 70025829
ER  -