Sources

• European Environment Agency Glossary
• OECD Sustainable Development’s Glossary
• Sustainable Cities Glossary
• US Environmental Protection Agency, Terms of the Environment
• WBCSD-Battelle, Toward a Sustainable Cement Industry. Summary Report, 2002
• WBCSD-WRI, The Greenhouse Gas Protocol. A corporate. Accounting and Reporting Standard, 2001
• U.S. Environmental Protection Agency, Terms of the
  Environment, December 2002
• UNI EN 197-1, ed. 2001 (30/06/2001)
• UNI EN 206-1, ed. 2001 (31/10/2001)