@misc{indiciae63db56b2a6b5,
  title = {Numerical Study of a Long-Lived, Isolated Wake Vortex in Ground Effect},
  author = {Proctor, Fred H.},
  year = {2014},
  url = {https://ntrs.nasa.gov/citations/20140011455},
  note = {Source identifier: 20140011455}
}