TY  - RPRT
TI  - Shadowgraphs Of Helicopter-Rotor-Tip Vortexes
AU  - Parthasarathy, Shakkottai P.
AU  - Cho, Young I.
AU  - Back, Lloyd H.
PY  - 1988
UR  - https://ntrs.nasa.gov/citations/19880000429
ID  - 19880000429
ER  -