@misc{indiciaedd42ab05d9f1,
  title = {Evidence for montmorillonite or its compositional equivalent in Columbia Hills, Mars},
  author = {B. C. Clark and R. E. Arvidson and Ralf Gellert and R.V. Morris and D. W. Ming and L. Richter and S. W. Ruff and J.R. Michalski and W. H. Farrand and A. S. Yen and Kenneth E. Herkenhoff and R. Li and S. W. Squyres and C. Schroder and G. Klingelhofer and J.F. Bell},
  year = {2007},
  doi = {10.1029/2006je002756},
  url = {https://pubs.usgs.gov/publication/70030093},
  note = {Source identifier: 70030093}
}