@misc{indiciae7a14f6eed37a,
  title = {Mariner 9 navigation},
  author = {Neil, W. J. and Jordan, J. F. and Zielenbach, J. W. and Wong, S. K. and Mitchell, R. T. and Webb, W. A. and Koskela, P. E.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19740021007},
  note = {Source identifier: 19740021007}
}