@misc{indiciaefda21388ee87,
  title = {Angular Broadening: Effects of Nonzero, Spatially Varying Plasma Frequency Between the Source and Observer},
  author = {Cairns, Iver H.},
  year = {1998},
  url = {https://ntrs.nasa.gov/citations/19990069932},
  note = {Source identifier: 19990069932}
}