@misc{indiciae25f7a322ba28,
  title = {Calculated Hovering Helicopter Flight Dynamics with a Circulation Controlled Rotor},
  author = {Johnson, W. and Chopra, I.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780002059},
  note = {Source identifier: 19780002059}
}