@misc{indiciae5976b6d8a3a8,
  title = {Helicopter vibration suppression using simple pendulum absorbers on the rotor blade},
  author = {Pierce, G. A. and Hanouva, M. N. H.},
  year = {1982},
  url = {https://ntrs.nasa.gov/citations/19820020406},
  note = {Source identifier: 19820020406}
}