@misc{indiciaeacaa09bfab2e,
  title = {Engine spectrometer probe and method of use},
  author = {Barkhoudarian, Sarkis and Kittinger, Scott A.},
  year = {2006},
  url = {https://ntrs.nasa.gov/citations/20080008674},
  note = {Source identifier: 20080008674}
}