@misc{indiciae3982d60a4208,
  title = {Networked differential GPS system},
  author = {Mueller, K. Tysen and Loomis, Peter V. W. and Kalafus, Rudolph M. and Sheynblat, Leonid},
  year = {1994},
  url = {https://ntrs.nasa.gov/citations/20080003980},
  note = {Source identifier: 20080003980}
}