@misc{indiciaed73f20f72a01,
  title = {An optical quality meter suitable for cryogenic liquids},
  author = {Hobart, H. F. and Minkin, H. L.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720000685},
  note = {Source identifier: 19720000685}
}