1. B. Neuffer, M. Laney. Alternative Control Techniques Document Update – NOx Emissions from New Cement Kilns. U.S. Environmental Protection Agency Office of Air Quality Planning and Standards Sector Policies and Programs Division Research Triangle Park, North Carolina, 2007, pp.39-45.
2. A. Josa, A. Aguado, A. Heino, et al. Comparative analysis of available life cycle inventories of cement in the EU. Cement and Concrete Research. 34 (2004) 1313-1320.
3. International Organisation for Standardisation, ISO 14040, Environmental Management—Life Cycle Assessment—Principles and Framework, Geneva, 2006, pp.6-17.
4. International Organisation for Standardisation, ISO 14041, Environmental Management—Life Cycle Assessment—Goal and Scope Definition and Inventory Analysis, Geneva, 2006, pp.2-10.
5. International Organisation for Standardisation, ISO 14042, Environmental Management, Life Cycle Assessment, Life Cycle Assessment, Geneva, 2006, pp.5-11.