TY  - RPRT
TI  - Helicopter model rotor-blade vortex interaction impulsive noise - Scalability and parametric variations
AU  - Boxwell, D. A.
AU  - Schmitz, F. H.
AU  - Splettstoesser, W. R.
AU  - Schultz, K. J.
PY  - 1985
UR  - https://ntrs.nasa.gov/citations/19860042920
ID  - 19860042920
ER  -