@misc{indiciae65fb9ac908e6,
  title = {Martian channels and valleys: Their characteristics, distribution, and age},
  author = {M. H. Carr and G.D. Clow},
  year = {1981},
  doi = {10.1016/0019-1035(81)90156-1},
  url = {https://pubs.usgs.gov/publication/70012119},
  note = {Source identifier: 70012119}
}