TY  - RPRT
TI  - Trace gas absorption spectroscopy using laser difference-frequency spectrometer for environmental application.
AU  - W Chen
AU  - F Cazier
AU  - D Boucher
AU  - F K Tittel
AU  - P B Davies
PY  - 2001
UR  - https://pubmed.ncbi.nlm.nih.gov/12143894/
ID  - 12143894
ER  -