@misc{indiciae73659c268fef,
  title = {Generating high precision ionospheric ground-truth measurements},
  author = {Komjathy, Attila and Sparks, Lawrence and Mannucci, Anthony J.},
  year = {2007},
  url = {https://ntrs.nasa.gov/citations/20080009512},
  note = {Source identifier: 20080009512}
}