@misc{indiciaee2b12717d7a5,
  title = {Coupled rotor-fuselage vibration reduction with multiple frequency blade pitch control},
  author = {Papavassiliou, I. and Friedmann, P. P. and Venkatesan, C.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19920073691},
  note = {Source identifier: 19920073691}
}