@misc{indiciae4b7e27547d2e,
  title = {Ionospheric corrections to precise time transfer using GPS},
  author = {Snow, Robert W. and Osborne, Allen W., III and Klobuchar, John A. and Doherty, Patricia H.},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/19940026172},
  note = {Source identifier: 19940026172}
}