@article {young2014prospects,
	title = {Prospects for sustainability certification of metals},
	journal = {Revue de M{\'e}tallurgie{\textendash}International Journal of Metallurgy},
	volume = {111},
	number = {3},
	year = {2014},
	pages = {131{\textendash}136},
	publisher = {EDP Sciences},
	author = {Young, Steven B and Zhe, Yuan and Dias, Goretty}
}