@misc{indiciaeed88676ce534,
  title = {13CO2/12CO2 isotopic ratio measurements using a difference frequency-based sensor operating at 4.35 micrometers.},
  author = {M Erdelyi and D Richter and F K Tittel},
  year = {2002},
  doi = {10.1007/s00340-002-0960-2},
  url = {https://pubmed.ncbi.nlm.nih.gov/12608356/},
  note = {Source identifier: 12608356}
}