@misc{indiciae330b6662fba1,
  title = {Compressible flow across shaft face seals},
  author = {Johnson, R. L. and Ludwig, L. P. and Zuk, J.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19710007052},
  note = {Source identifier: 19710007052}
}