TY  - RPRT
TI  - 13CO2/12CO2 isotopic ratio measurements using a difference frequency-based sensor operating at 4.35 micrometers.
AU  - M Erdelyi
AU  - D Richter
AU  - F K Tittel
PY  - 2002
DO  - 10.1007/s00340-002-0960-2
UR  - https://pubmed.ncbi.nlm.nih.gov/12608356/
ID  - 12608356
ER  -