TY  - RPRT
TI  - Low-noise propulsion systems for subsonic transports
AU  - Feiler, C. E.
AU  - Kramer, J. J.
AU  - Leonard, B. R.
PY  - 1969
UR  - https://ntrs.nasa.gov/citations/19700038772
ID  - 19700038772
ER  -