@misc{indiciae578fd1320d08,
  title = {Platinum-group elements},
  author = {Michael L. Zientek and Patricia J. Loferski and Heather L. Parks and Ruth F. Schulte and Robert R. Seal},
  year = {2017},
  doi = {10.3133/pp1802n},
  url = {https://pubs.usgs.gov/publication/pp1802N},
  note = {Source identifier: pp1802N}
}