@misc{indiciaec8b6c65e8c98,
  title = {Turbofan-engine noise suppression.},
  author = {Marsh, A. H. and Pendley, R. E.},
  year = {1968},
  url = {https://ntrs.nasa.gov/citations/19680046934},
  note = {Source identifier: 19680046934}
}