@misc{indiciaeb28d261731d4,
  title = {Sub-nanosecond clock synchronization and precision deep space tracking},
  author = {Charles Dunn and Stephen Lichten and David Jefferson and James S. Border},
  year = {1991},
  url = {https://ntrs.nasa.gov/citations/19920024113},
  note = {Source identifier: 19920024113}
}