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Rui Hu , 2014. Low-Carbon Index System for Steel Firms Based on Energy Flow. Journal of Applied Sciences, 14: 151-157.
DOI: 10.3923/jas.2014.151.157
URL: https://scialert.net/abstract/?doi=jas.2014.151.157
DOI: 10.3923/jas.2014.151.157
URL: https://scialert.net/abstract/?doi=jas.2014.151.157