@misc{indiciaea2345cf5e16a,
  title = {Water on Mars: Petrographic Evidence},
  author = {Wentworth, S. J. and Thomas-Keprta, K. L. and McKay, D. S.},
  year = {2002},
  url = {https://ntrs.nasa.gov/citations/20020046457},
  note = {Source identifier: 20020046457}
}