@article{pauliuk2013steel, title = {Steel all over the world: Estimating in-use stocks of iron for 200 countries} author = {Pauliuk, Stefan, and Wang, Tao, and Müller, Daniel B.}, journal = {Resources, Conservation and Recycling}, doi = {10.1016/j.resconrec.2012.11.008}, year = {2013} }