6.Feiz, R., Ammenberg, J., Baas, L., Eklund, M., Helgstrand, A., and Marshall, R.,
“Improving the CO2 Performance of Cement, Part I: Utilizing Life-Cycle Assessment
and Key Performance Indicators to Assess Development within the Cement Industry”,
Journal of Cleaner Production, 2014. DOI:10.1065/lca2007.05.327.
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