@misc{indiciae6759ac08b41d,
  title = {NASA-Sponsored GPS Global Network Activities},
  author = {Stowers, D. and Ruud, O. and Khachikyan, R.},
  year = {2004},
  url = {https://ntrs.nasa.gov/citations/20050192513},
  note = {Source identifier: 20050192513}
}