@misc{indiciae89919b3989d7,
  title = {Prediction of sound fields in cavities using boundary-element methods},
  author = {Bernhard, R. J. and Gardner, B. K. and Mollo, C. G. and Kipp, C. R.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19880025054},
  note = {Source identifier: 19880025054}
}