@misc{indiciaebd6cfc39a01d,
  title = {Acoustics in variable area duct - Finite element and finite difference comparisons to experiment},
  author = {Baumeister, K. J. and Eversman, W. and White, J. W. and Astley, R. J.},
  year = {1983},
  url = {https://ntrs.nasa.gov/citations/19830038591},
  note = {Source identifier: 19830038591}
}