@misc{indiciae968deeee74f1,
  title = {Vibration and loads in hingeless rotors. Volume 2: Experimental data},
  author = {Watts, G. A. and London, R. J.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19730009308},
  note = {Source identifier: 19730009308}
}