TY  - RPRT
TI  - A bacterial method for the nitrogen isotopic analysis of nitrate in seawater and freshwater
AU  - D.M. Sigman
AU  - K.L. Casciotti
AU  - M. Andreani
AU  - C. Barford
AU  - M. Galanter
AU  - J.K. Böhlke
PY  - 2001
DO  - 10.1021/ac010088e
UR  - https://pubs.usgs.gov/publication/70185192
ID  - 70185192
ER  -