@misc{indiciae8f2436e5b234,
  title = {Progress on Passive Sensor for Ultra-Precise Measurement of C02},
  author = {Heaps, William S. and Kawa, S. Randolph and Georgieva, Elena and Wilson, Emily},
  year = {2003},
  url = {https://ntrs.nasa.gov/citations/20030093637},
  note = {Source identifier: 20030093637}
}