@misc{indiciaebd21f00e6eaf,
  title = {Tiltrotor Vibration Reduction Through Higher Harmonic Control},
  author = {Nixon, Mark W. and Kvaternik, Raymond G. and Settle, T. Ben},
  year = {1997},
  url = {https://ntrs.nasa.gov/citations/19970015092},
  note = {Source identifier: 19970015092}
}