@misc{indiciae109be4d3ff5e,
  title = {Preliminary assessment of porphyry copper deposits in the Sierra Maestra, Cuba},
  author = {Lukas Zurcher and Floyd Gray and Timothy Hayes and Greta J. Orris and Mark E. Gettings and Mark D. Cocker and Leila Gass},
  year = {2017},
  url = {https://pubs.usgs.gov/publication/70212544},
  note = {Source identifier: 70212544}
}