@misc{indiciaebfb035264197,
  title = {Optimum segmented acoustic liners for flow ducts},
  author = {Sawdy, D. T. and Beckemeyer, R. J. and Patterson, J. D.},
  year = {1975},
  url = {https://ntrs.nasa.gov/citations/19760042163},
  note = {Source identifier: 19760042163}
}