@misc{indiciaef16b2208a761,
  title = {Negative ions in the coma of Comet Halley},
  author = {Chaizy, P. and Reme, H. and Sauvaud, J. A. and D'Uston, C. and Lin, R. P.},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19910040472},
  note = {Source identifier: 19910040472}
}