@misc{indiciaed1cf96e87081,
  title = {Difference-frequency-based tunable absorption spectrometer for detection of atmospheric formaldehyde.},
  author = {D G Lancaster and A Fried and B Wert and B Henry and F K Tittel},
  year = {2000},
  doi = {10.1364/ao.39.004436},
  url = {https://pubmed.ncbi.nlm.nih.gov/11543547/},
  note = {Source identifier: 11543547}
}