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Cullen, J.M.; Allwood, J.M.; Bambach, M.D. (2012). "Mapping the global flow of steel: from steel making to end-use goods". Environmental Science & Technology. 46 (24): 13048–13055. doi:10.1021/es302433p. ISSN0013-936X. PMID23167601.
Cullen, J.M.; Allwood, J.M.; Bambach, M.D. (2012). "Mapping the global flow of steel: from steel making to end-use goods". Environmental Science & Technology. 46 (24): 13048–13055. doi:10.1021/es302433p. ISSN0013-936X. PMID23167601.