@misc{indiciae80795f8db140,
  title = {Free wake analysis of hover performance using a new influence coefficient method},
  author = {Quackenbush, Todd R. and Bliss, Donald B. and Ong, Ching Cho and Ching, Cho Ong},
  year = {1990},
  url = {https://ntrs.nasa.gov/citations/19910009737},
  note = {Source identifier: 19910009737}
}