@misc{indiciaef7f14319a40b,
  title = {TOPEX/POSEIDON Ground Track Maintenance Experience},
  author = {Shapiro, B. E. and Bhat, R. S. and Frauenholz, R. B.},
  year = {1993},
  url = {https://ntrs.nasa.gov/citations/20060038608},
  note = {Source identifier: 20060038608}
}