@misc{indiciaed67ad5e3b7d2,
  title = {Ionospheric range-rate effects in satellite-to-satellite tracking},
  author = {Lipofsky, J. R. and Bent, R. B. and Llewellyn, S. K. and Schmid, P. E.},
  year = {1977},
  url = {https://ntrs.nasa.gov/citations/19780018222},
  note = {Source identifier: 19780018222}
}