@misc{indiciae34f492e66d9d,
  title = {Method of fan sound mode structure determination computer program user's manual: Modal calculation program},
  author = {Pickett, G. F. and Wells, R. A. and Love, R. A.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780009123},
  note = {Source identifier: 19780009123}
}