@misc{indiciae6cdb74f5825a,
  title = {Neutral atmospheres of comets - A distributed source model},
  author = {Ip, W.-H. and Mendis, D. A.},
  year = {1974},
  url = {https://ntrs.nasa.gov/citations/19740043306},
  note = {Source identifier: 19740043306}
}