@misc{indiciae31b5dcd3f226,
  title = {Turbomachinery noise},
  author = {Groeneweg, John F. and Sofrin, Thomas G. and Rice, Edward J. and Gliebe, Phillip R.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19920001383},
  note = {Source identifier: 19920001383}
}