@misc{indiciaefb6a49fd3497,
  title = {Conflict minerals from the Democratic Republic of the Congo: global tungsten processing plants, a critical part of the tungsten supply chain},
  author = {Omayra Bermudez-Lugo},
  year = {2014},
  doi = {10.3133/fs20143069},
  url = {https://pubs.usgs.gov/publication/fs20143069},
  note = {Source identifier: fs20143069}
}