@misc{indiciae306bdae89b58,
  title = {Penetration of retrorocket exhausts into subsonic counterflows.},
  author = {Jarvinen, P. O. and Hill, J. A. F.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730034689},
  note = {Source identifier: 19730034689}
}