@misc{indiciae2f904cb313fd,
  title = {Ducted-Fan Engine Acoustic Predictions using a Navier-Stokes Code},
  author = {Rumsey, C. L. and Biedron, R. T. and Farassat, F. and Spence, P. L.},
  year = {1998},
  url = {https://ntrs.nasa.gov/citations/20040110325},
  note = {Source identifier: 20040110325}
}