TY  - RPRT
TI  - An interlaboratory study to test instrument performance of hydrogen dual-inlet isotope-ratio mass spectrometers
AU  - Willi A. Brand
AU  - T.B. Coplen
PY  - 2001
DO  - 10.1007/s002160100814
UR  - https://pubs.usgs.gov/publication/70023310
ID  - 70023310
ER  -