@misc{indiciae063169e0b373,
  title = {Hydrogen slush density reference system},
  author = {Weitzel, D. H. and Lowe, L. T. and Ellerbruch, D. A. and Cruz, J. E. and Sindt, C. F.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19720005708},
  note = {Source identifier: 19720005708}
}