@misc{indiciaed9f74fb5eb9b,
  title = {Helium ion outflow from the terrestrial ionosphere},
  author = {Raitt, W. J. and Schunk, R. W. and Banks, P. M.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19780049574},
  note = {Source identifier: 19780049574}
}