@misc{indiciae96ed49857a2b,
  title = {Vibration reduction in helicopter rotors using an active control surface located on the blade},
  author = {Millott, T. A. and Friedmann, P. P.},
  year = {1992},
  url = {https://ntrs.nasa.gov/citations/19920051854},
  note = {Source identifier: 19920051854}
}