@misc{indiciaec0817729bc6d,
  title = {Platinum metals in magmatic sulfide ores},
  author = {A.J. Naldrett and J.M. Duke},
  year = {1980},
  doi = {10.1126/science.208.4451.1417},
  url = {https://pubs.usgs.gov/publication/70012203},
  note = {Source identifier: 70012203}
}