@misc{indiciae8a20a46be71c,
  title = {Zonal approach to V/STOL aerodynamics},
  author = {Yoo, Sungyul and Strash, Daniel J.},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910034281},
  note = {Source identifier: 19910034281}
}