@misc{indiciae67d6a050d9a5,
  title = {Acative Atmospheric Limb Sounding with an Orbiting GPS},
  author = {Ware, R. and Exner, M. and Herman, B. and Kuo, W. and Mehan, T.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/20060039423},
  note = {Source identifier: 20060039423}
}