@misc{indiciae4d91ace610ef,
  title = {Analyzing Wakes From Hovering-Helicopter Rotor Blades},
  author = {Bliss, D. B. and Wachspress, D. A. and Quackenbush, T. R. and Bilanin, A. J.},
  year = {1987},
  url = {https://ntrs.nasa.gov/citations/19870000482},
  note = {Source identifier: 19870000482}
}