@misc{indiciae750e143f8a3e,
  title = {Flows of selected materials associated with world copper smelting},
  author = {Thomas G. Goonan},
  year = {2005},
  doi = {10.3133/ofr20041395},
  url = {https://pubs.usgs.gov/publication/ofr20041395},
  note = {Source identifier: ofr20041395}
}