1. Alonso E, Gregory J, Field F, Kirchain R (2007) Material availability and the supply chain: risks, effects and responses. Environ Sci Technol 41(19):6649–6656
2. Binnemans K, Jones PT, Fernandez AM, Torres VM (2020) Hydrometallurgical processes for the recovery of metals from steel industry by-products: a critical review. J Sust Met 6:505–540
3. Dawkins E, Roelich K, Falk R, Chadwick M (2012) Metals in a low-carbon economy: resource scarcity, climate change and business in a finite world (Policy brief). SEI Policy Brief, Stockholm, Sweden
4. Deaux J, Matthew C (2015) In a world filled with gluts, one metal is suddenly difficult to find. Bloomberg Business. https://www.bloomberg.com/news/articles/2015-04-08/in-a-world-filled-with-gluts-one-metal-is-suddenly-hard-to-find
5. Gordon RB, Lifset RJ, Bertram M, Reck B, Spatari S, Graedel TE (2004) Where is all the zinc going: the stocks and flows project, part 2. J Miner Met Mater Soc 56(1):24–29