@misc{indiciae92ed7c736506,
  title = {On-board optical navigation data from Mariner '71.'},
  author = {Duxbury, T. C. and Acton, C. H., Jr.},
  year = {1972},
  url = {https://ntrs.nasa.gov/citations/19720048530},
  note = {Source identifier: 19720048530}
}