@misc{indiciae3a69530edc07,
  title = {Mars Global Geologic Mapping Progress and Suggested Geographic-Based Hierarchal Systems for Unit Grouping and Naming},
  author = {Tanaka, K. L. and Dohm, J. M. and Irwin, R. and Kolb, E. J. and Skinner, J. A., Jr. and Hare, T. M.},
  year = {2010},
  url = {https://ntrs.nasa.gov/citations/20110002761},
  note = {Source identifier: 20110002761}
}