@misc{indiciaea2f332975cc4,
  title = {Validation of a global ionospheric data assimilation model},
  author = {Wilson, B. D. and Hajj, G. and Wang, C. and Pi, X. and Rosen, G.},
  year = {2003},
  url = {https://ntrs.nasa.gov/citations/20060029118},
  note = {Source identifier: 20060029118}
}