@misc{indiciae07ad782943c5,
  title = {Geologic map of the northern plains of Mars},
  author = {Kenneth L. Tanaka and James A. Skinner and Trent M. Hare},
  year = {2005},
  doi = {10.3133/sim2888},
  url = {https://pubs.usgs.gov/publication/sim2888},
  note = {Source identifier: sim2888}
}