@misc{indiciaeb4fc3a5351ea,
  title = {Design of Mariner 9 Science Sequences using Interactive Graphics Software},
  author = {Freeman, J. E. and Sturms, F. M, Jr. and Webb, W. A.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/20000004393},
  note = {Source identifier: 20000004393}
}