@misc{indiciaeba0401f9fad4,
  title = {Feasibility Study for an X-ray Backscatter Air Density Sensor Final Report},
  author = {Hakewessell, D. B.},
  year = {1964},
  url = {https://ntrs.nasa.gov/citations/19660001590},
  note = {Source identifier: 19660001590}
}