@misc{indiciae4cf5c6bfbce1,
  title = {Spectral reflectance properties (0.4-2.5 um) of secondary Fe-oxide, Fe-hydroxide, and Fe-sulfate-hydrate minerals associated with sulfide-bearing mine waste},
  author = {J.K. Crowley and D.E. Williams and J.M. Hammarstrom1 and N. Piatak and J.C. Mars and I-Ming Chou},
  year = {2006},
  doi = {10.3133/ofr2003196},
  url = {https://pubs.usgs.gov/publication/ofr2003196},
  note = {Source identifier: ofr2003196}
}