@misc{indiciaedcd6897e6653,
  title = {Liquid-hydrogen density measurements using an open-ended microwave cavity},
  author = {Smetana, J. and Wenger, N. C.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19660028854},
  note = {Source identifier: 19660028854}
}