@misc{indiciaee67175071eac,
  title = {A Variable Diameter Short Haul Civil Tiltrotor},
  author = {Wang, James M. and Jones, Christopher T. and Nixon, Mark W.},
  year = {1999},
  url = {https://ntrs.nasa.gov/citations/20040086741},
  note = {Source identifier: 20040086741}
}