@misc{indiciaeb7a7e9d341bc,
  title = {Laser Doppler instrument measures fluid velocity without reference beam},
  author = {Bourquin, K. R. and Shigemoto, F. H.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710000119},
  note = {Source identifier: 19710000119}
}