TY  - RPRT
TI  - A three-dimensional viscous flow analysis for the helicopter tip vortex generation problem
AU  - Lin, S. J.
AU  - Levy, R.
AU  - Shamroth, S. J.
AU  - Govindan, T. R.
PY  - 1985
UR  - https://ntrs.nasa.gov/citations/19850025801
ID  - 19850025801
ER  -