1. European Commission, Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions. Closing the Loop - An EU Action Plan for the Circular Economy, 2015, http://ec.europa.eu/environment/circular-economy/.
2. See the ERN project for the market landscape and case studies at https://www.remanufacturing.eu/.
3. A protocol to perform usage oriented ecodesign;Cor;CIRP Annals- Manufacturing technology,2014
4. “Sustainable” products? Necessity for an overall design approach;Zwolinski;International Journal of Environmentally Conscious Design and Manufacturing,2007