TY  - RPRT
TI  - Digital flight control design for a tandem-rotor helicopter
AU  - Stengel, R. F.
AU  - Broussard, J. R.
AU  - Berry, P. W.
PY  - 1977
UR  - https://ntrs.nasa.gov/citations/19770057223
ID  - 19770057223
ER  -