@misc{indiciae7d8614fa7c1a,
  title = {Auroral helium precipitation.},
  author = {Axford, W. I. and Chivers, H. J. A. and Eberhardt, P. and Geiss, J. and Buehler, F.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19730030732},
  note = {Source identifier: 19730030732}
}