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2. Pelletier N, Maas R, Goralcyk M, Wolf M-A. Towards a Life-Cycle Based European Sustainability Footprint Framework. Luxemburg2012.
3. ISO 14040. Environmental management - Life cycle assessment - Principles and framework (ISO 14040:2006). 2. ed. July 2006 ed. Geneva: ISO; 2006.
4. ISO 14044. Environmental management - Life cycle assessment - Requirements and guidelines (ISO 14044:2006). Geneva: ISO; 2006.
5. Erwin M. Schau, Ya-Ju Chang, René Scheumann, Matthias Finkbeiner. Manufactured products – how can their life cycle sustainability be measured? A case study of a bamboo bicycle. The 10th Global Conference on Sustainable Manufacturing; Istanbul, Turkey2012.