1. ISO 14040 (DIN EN ISO 14040), Environmental Management Life Cycle Assessment Principles and Framework, 1997.

2. EN ISO 14041, Environmental Management Life Cycle Assessment Goal and scope definition and inventory analysis, 1998.

3. EN ISO 14042, Environmental Management Life Cycle Assessment Life Cycle Impact Assessment, 1998.

4. EN ISO 14043, Environmental Management Life Cycle Assessment Life Cycle Interpretation, 1999.

5. J.B. Guin e, M. Gorr e, R. Heijungs, G. Huppes, R. Kleijn, A. de Koning, L. van Oers, A.W. Sleeswijk, S. Suh, H.A. Udo de Haes, H. de Bruin, R. van Duin and M.A.J. Huijbregts, Life Cycle Assessment An Operational Guide to the ISO Standards, Parts 1-3, Kluwer Academic Publishers, Dordrecht, The Netherlands, 2001.

6. Eco-indicator 95 - Weighting Method for Environmental Effects that Damage Ecosystems or Human Health on a European Scale, Pr Consultants and DUIF Consultancy bV, Amersfoort, The Netherlands, 1995.

7. F. Dinkel, C. Pohl, M. Ros and B. Waldeck, Life Cycle Assessment (LCA) of Starch Polymers ( kobilanz st rkehaltiger Kunststoffe) , Report No. 271, 2 volumes, BUWAL, Berne, Switzerland, 1996. [In German]

8. R. Estermann, Test of Biodegradable Bags for Green Waste (Test von S cken aus biologisch abbaubaren Werkstoffen f r die Gr nabfallsammlung), Composto, Olten for the Kompostforum Schweiz, Uerikon, Switzerland, 1998. [In German]

9. Polymers from Renewable Resources Comparative Life Cycle Assessment for Loose-Fill Packaging Material from Starch and Polystyrene (Kunststoffe aus Nachwachsenden Rohstoffen - Vergleichende kobilanz f r Loose-Fill-Packmittel...