@misc{indiciaeacfb3e23069f,
  title = {Field Reconnaissance Geologic Mapping of the Columbia Hills, Mars: Results from MER Spirit and MRO HiRISE Observations},
  author = {L.S. Crumpler and R. E. Arvidson and S. W. Squyres and T. McCoy and A. Yingst and S. Ruff and W. Farrand and Y. McSween and M. Powell and D. W. Ming and R.V. Morris and J.F. Bell and J. Grant and R. Greeley and D. DesMarais and M. Schmidt and N.A. Cabrol and A. Haldemann and Kevin W. Lewis and A.E. Wang and C. Schroder and D. Blaney and B. Cohen and A. Yen and J. Farmer and Ralf Gellert and E.A. Guinness and K. E. Herkenhoff and J. R. Johnson and G. Klingelhofer and A. McEwen and J. W. Rice and M. Rice and P. deSouza and J. Hurowitz},
  year = {2011},
  doi = {10.1029/2010je003749},
  url = {https://pubs.usgs.gov/publication/70003790},
  note = {Source identifier: 70003790}
}