@misc{indiciaecba9c4df5da7,
  title = {Voluminous volcanism on early mars revealed in valles marineris},
  author = {A. S. McEwen and M. C. Malin and M. H. Carr and W.K. Hartmann},
  year = {1999},
  doi = {10.1038/17539},
  url = {https://pubs.usgs.gov/publication/70021804},
  note = {Source identifier: 70021804}
}