@misc{indiciae94de970f1764,
  title = {Mariner 9 aerographic coordinate system},
  author = {Devaucouleurs, G. and Davies, M. E. and Sturms, F. M., Jr.},
  year = {1973},
  url = {https://ntrs.nasa.gov/citations/19730023987},
  note = {Source identifier: 19730023987}
}