@article{Chen2016, author = "Wei-Qiang Chen and T. E. Graedel", title = "{Anthropogenic Cycles of the Elements: A Critical Review}", year = "2016", month = "2", url = "https://acs.figshare.com/articles/journal_contribution/Anthropogenic_Cycles_of_the_Elements_A_Critical_Review/2494402", doi = "10.1021/es3010333.s001" }