@misc{indiciaeb9f65be22eb8,
  title = {Development of a miniaturized, sterilizable, gamma-backscatter atmosphere density sensor},
  author = {Hassenpflug, R. G.},
  year = {1970},
  url = {https://ntrs.nasa.gov/citations/19710026043},
  note = {Source identifier: 19710026043}
}