@misc{indiciaeb7f0d261f156,
  title = {Airbreathing propulsion system testing using sweep frequency techniques},
  author = {Burton, W. M. and Drain, D. I. and Paulovich, F. J.},
  year = {1969},
  url = {https://ntrs.nasa.gov/citations/19690029800},
  note = {Source identifier: 19690029800}
}