@misc{indiciae7ca00d15f676,
  title = {Laboratory simulation of cometary neutral gas ionization},
  author = {Chang, Tsuey-Fen and Rahman, H. U. and White, R. S.},
  year = {1989},
  url = {https://ntrs.nasa.gov/citations/19890051563},
  note = {Source identifier: 19890051563}
}