@misc{indiciae36447d9c635e,
  title = {Orbit determination requirements for TOPEX},
  author = {Tapley, B. D. and Schutz, B. E. and Ries, J. and Rosborough, G. and Born, G. H.},
  year = {1981},
  url = {https://ntrs.nasa.gov/citations/19810061424},
  note = {Source identifier: 19810061424}
}