TY  - RPRT
TI  - Method and apparatus for shaping and enhancing acoustical levitation forces
AU  - Oran, W. A.
AU  - Berge, L. H.
AU  - Reiss, D. A.
AU  - Johnson, J. L.
PY  - 1980
UR  - https://ntrs.nasa.gov/citations/19810007252
ID  - 19810007252
ER  -