@misc{indiciae950cdb42c85b,
  title = {Flow visualization experiments in a porous nozzle},
  author = {Cielak, Z. and Kinney, R. B. and Perkins, H. C.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19740003971},
  note = {Source identifier: 19740003971}
}