@misc{indiciae584970d3ee5b,
  title = {A new approach to the free wake problem for hovering rotors},
  author = {Bliss, D. B. and Wachspress, D. A. and Quackenbush, T. R.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19860050895},
  note = {Source identifier: 19860050895}
}