@misc{indiciae2d4f7f9f7677,
  title = {Global color variations on the Martian surface},
  author = {L.A. Soderblom and K. Edwards and E. M. Eliason and E.M. Sanchez and M.P. Charette},
  year = {1978},
  doi = {10.1016/0019-1035(78)90037-4},
  url = {https://pubs.usgs.gov/publication/70012614},
  note = {Source identifier: 70012614}
}