@misc{indiciaef208867c212c,
  title = {Metallurgical coal—Deposits, production, resources, market dynamics, and supply chain risks},
  author = {Brian N. Shaffer and Elisa Alonso and Michelle N. Johnston and Scott A. Kinney},
  year = {2026},
  doi = {10.3133/fs20263061},
  url = {https://pubs.usgs.gov/publication/fs20263061},
  note = {Source identifier: fs20263061}
}