@misc{indiciaebf123f5d474e,
  title = {Compensating linkage for main rotor control},
  author = {Jeffery, P. A. E. and Huber, R. F.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810010561},
  note = {Source identifier: 19810010561}
}