@misc{indiciaea4744b0bd5b9,
  title = {Charge composition of solar cosmic rays},
  author = {Bertsch, D. L. and Fichtel, C. E. and Reames, D. V.},
  year = {1971},
  url = {https://ntrs.nasa.gov/citations/19720004077},
  note = {Source identifier: 19720004077}
}