@misc{indiciaeee845d60adb1,
  title = {China, the Democratic Republic of the Congo, and artisanal cobalt mining from 2000 through 2020},
  author = {Andrew L. Gulley},
  year = {2023},
  doi = {10.1073/pnas.2212037120},
  url = {https://pubs.usgs.gov/publication/70238775},
  note = {Source identifier: 70238775}
}