@misc{indiciaebf183ac007c6,
  title = {Helicopter vibration suppression using simple pendulum absorbers on the rotor blade},
  author = {Hamouda, M.-N. H. and Pierce, G. A.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19820043085},
  note = {Source identifier: 19820043085}
}