1. http://www.foodproductiondaily.com/Packaging/PET-Packaging-demand-to-grow-more-than-5-annually-for-next-five-years-report (accessed 14.09.12).
2. http://www.petcore.org (accessed 14.09.12).
3. Recycling of PET;Scheirs,1998
4. The chemical recycling of PET in the framework of sustainable development;Achilias;Water, Air, & Soil Pollution: Focus,2004
5. Chemical recycling of PET;Karayannidis;Macromolecular Materials and Engineering,2007