References
- Baumann , H. and Tillman , A. 2004 . The Hitch Hiker's Guide to LCA: An Orientation in Life Cycle Assessment Methodology and Application , Lund , , Sweden : Studentlitteratur .
- ISO . 2006a . Environmental management - Life cycle assessment - Principles and framework , Geneva : International Organisation for Standardisation . 14040:2006
- ISO . 2006b . Environmental management - Life cycle assessment - Requirements and guidelines , Geneva : International Organisation for Standardisation . 14044:2006