1. Finkbeiner M (2013) From the 40s to the 70s—the future of LCA in the ISO 14000 family (editorial). Int J Life Cycle Assess 18:1–4
2. Grahl B, Schmincke E (2012) “Critical review” and “Verification” cannot be used synonymously - a plea for a differentiated and precise use of the terms. In proceedings of the Life Cycle Management (LCM) Conference 2011, Berlin, Germany
3. ISO (2006a) ISO 14040 Environmental management—life cycle assessment—principles and framework. International Organisation for Standardisation (ISO), Geneve
4. ISO (2006b) ISO 14044 Environmental management—life cycle assessment—requirements and guidelines. International Organisation for Standardisation (ISO), Geneve
5. ISO (2011) ISO 19011:2011 Guidelines for quality and/or environmental management systems auditing. International Organisation for Standardisation, Geneve, Switzerland, Geneva