@misc{indiciae20e731f6bced,
  title = {Duct liner optimization for turbomachinery noise sources},
  author = {Lester, H. C. and Posey, J. W.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19760004009},
  note = {Source identifier: 19760004009}
}