@misc{indiciae7aa78a135fed,
  title = {The hidden ion population - Revisited},
  author = {Olsen, R. C. and Chappell, C. R. and Gallagher, D. L. and Green, J. L. and Gurnett, D. A.},
  year = {1985},
  url = {https://ntrs.nasa.gov/citations/19860039650},
  note = {Source identifier: 19860039650}
}