@misc{indiciaeee6d482c3821,
  title = {On a method computing transient wave propagation in ionospheric regions},
  author = {Gray, K. G. and Bowhill, S. A.},
  year = {1978},
  url = {https://ntrs.nasa.gov/citations/19780038088},
  note = {Source identifier: 19780038088}
}