@misc{indiciae5991245b31d8,
  title = {Aeroacoutic characteristics of a large, variable-pitch, variable-speed fan system},
  author = {Soderman, P. T. and Mort, K. W.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19830014842},
  note = {Source identifier: 19830014842}
}