TY  - RPRT
TI  - Nonlinear coupled rotor-fuselage helicopter vibration studies with higher harmonic control
AU  - Friedmann, P. P.
AU  - Venkatesan, C.
AU  - Papavassiliou, I.
PY  - 1990
UR  - https://ntrs.nasa.gov/citations/19910032607
ID  - 19910032607
ER  -