@misc{indiciaee42d33d80b07,
  title = {Simulation study of the lift roll coupling problem for hovering VTOL aircraft},
  author = {Jacobsen, R. A. and Greif, R. K.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720020370},
  note = {Source identifier: 19720020370}
}