@misc{indiciae607153769f61,
  title = {A note on a phenomenon affecting helicopter directional control in rearward flight},
  author = {Huston, R. J. and Morris, C. E., Jr.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19700068207},
  note = {Source identifier: 19700068207}
}