@misc{indiciae5799231a131b,
  title = {Lower-troposphere sounding with GPS occultation: challenges and progress},
  author = {Ao, C. O. and Dong, D. and Hajj, G. A. and Iijima, B. A. and Juarez, M. de la Torre and Mannucci, A. J. and Meehan, T. K.},
  year = {2003},
  url = {https://ntrs.nasa.gov/citations/20060028802},
  note = {Source identifier: 20060028802}
}