@misc{indiciae65b6eff9d5e1, title = {One hundred years of cobalt production in the Democratic Republic of the Congo}, author = {Andrew L. Gulley}, year = {2022}, doi = {10.1016/j.resourpol.2022.103007}, url = {https://pubs.usgs.gov/publication/70238435}, note = {Source identifier: 70238435} }