@conference {young2015mapping,
	title = {Mapping tantalum provenance, production and flows},
	booktitle = {ISSST 2015},
	volume = {23},
	year = {2015},
	publisher = {Dearborn, Michigan},
	organization = {Dearborn, Michigan},
	author = {Young, Steven B and Achebe, Jessica and Na, Yilun and Nlandu, Jean-Oscar}
}
