TY  - RPRT
TI  - Geared-elevator flutter study
AU  - Ruhlin, C. L.
AU  - Doggett, R. V., Jr.
AU  - Gregory, R. A.
PY  - 1976
UR  - https://ntrs.nasa.gov/citations/19760021070
ID  - 19760021070
ER  -