@misc{indiciae878aa09ebe32,
  title = {A spark chamber spectrometer for space protons.},
  author = {Aggson, T. and Churchill, R. J. and Madey, R.},
  year = {1966},
  url = {https://ntrs.nasa.gov/citations/19660044396},
  note = {Source identifier: 19660044396}
}