TY  - RPRT
TI  - Prediction of sound fields in cavities using boundary-element methods
AU  - Bernhard, R. J.
AU  - Gardner, B. K.
AU  - Mollo, C. G.
AU  - Kipp, C. R.
PY  - 1987
UR  - https://ntrs.nasa.gov/citations/19880025054
ID  - 19880025054
ER  -