@misc{indiciae5d7f1b728565,
  title = {Rotorcraft flying qualities improvement using advanced control},
  author = {Walker, D. and Postlethwaite, I. and Howitt, J. and Foster, N.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/19940008830},
  note = {Source identifier: 19940008830}
}