@misc{indiciae237620a69be6,
  title = {UHB demonstrator interior noise control flight tests and analysis},
  author = {Simpson, M. A. and Druez, P. M. and Kimbrough, A. J. and Brock, M. P. and Burge, P. L. and Mathur, G. P. and Cannon, M. R. and Tran, B. N.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19900003882},
  note = {Source identifier: 19900003882}
}