@misc{indiciaece5de6e1f06a,
  title = {Quantitative mineral resource assessment of copper, molybdenum, gold, and silver in undiscovered porphyry copper deposits in the Andes Mountains of South America},
  author = {Charles G. Cunningham and Eduardo O. Zappettini and Waldo Vivallo S. and Carlos Mario Celada and Jorge Quispe and Donald A. Singer and Joseph A. Briskey and David M. Sutphin and Mariano Gajardo M. and Alejandro Diaz and Carlos Portigliati and Vladimir I. Berger and Rodrigo Carrasco and Klaus J. Schulz},
  year = {2008},
  doi = {10.3133/ofr20081253},
  url = {https://pubs.usgs.gov/publication/ofr20081253},
  note = {Source identifier: ofr20081253}
}