@misc{indiciaebedbe7d31c07,
  title = {Mariner 9 celestial mechanics experiment - A status report.},
  author = {Lorell, J. and Shapiro, I. I.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730052421},
  note = {Source identifier: 19730052421}
}