@misc{indiciae700488007183,
  title = {Monitoring Ionospheric Total Electron Content Using the Global GPS Network},
  author = {Wilson, Brian D. and Mannucci, Anthony J. and Yuan, Dah-Ning and Lindqwister, Ulf J. and Runge, Thomas F.},
  year = {1995},
  url = {https://ntrs.nasa.gov/citations/20060037212},
  note = {Source identifier: 20060037212}
}