@misc{indiciae62d7234d8462,
  title = {Design considerations in mechanical face seals for improved performance. 2: Lubrication},
  author = {Ludwig, L. P. and Greiner, H. F.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19770026574},
  note = {Source identifier: 19770026574}
}