@misc{indiciae66c988a84475,
  title = {Acoustic spectral analysis and testing techniques},
  author = {Hayes, C. D. and Lamers, M. D. and Shipley, J. W. and Slusser, R. A.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720000340},
  note = {Source identifier: 19720000340}
}