@misc{indiciaead8c4de45458,
  title = {Observing system simulation experiments for GPS altimetry},
  author = {Chao, Y. and Zuffada, C. and Lowe, S. T.},
  year = {2001},
  url = {https://ntrs.nasa.gov/citations/20060032049},
  note = {Source identifier: 20060032049}
}