TY  - RPRT
TI  - Flight Flutter Testing of Rotary Wing Aircraft Using a Control System Oscillation Technique
AU  - Yen, J. G.
AU  - Viswanathan, S.
AU  - Matthys, C. G.
PY  - 1976
UR  - https://ntrs.nasa.gov/citations/19770014097
ID  - 19770014097
ER  -