1. Poly(lactic acid) “LACEA”;Kawashima,2002
2. Poly(lactic acid);Vert,2004
3. Biodegradable Plastics Society, Japan (BPS). http://www.bpsweb.net/02_english/.
4. ISO 14851. Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium – method by measuring the oxygen demand in a closed respirometer; 1999.
5. ISO14855–1. Determination of the ultimate aerobic biodegradability and disintegration of plastic materials under controlled composting conditions – method by analysis of evolved carbon dioxide – part 1: general method; 2005.