1. Our common future,1987
2. Factor four—doubling wealth, halving resource use;Von Weizsäcker,1997
3. The factor X debate: setting targets for eco-efficiency;Reijnders;J Ind Ecol,1998
4. ECO2-IRN (Ecologically and Economically Sound Design and Manufacture—Interdisciplinary Research Network). Defining ecodesign, workshop: economically and ecologically sound design and manufacture. Third Forum, Manchester Metropolitan University, UK; 1995.
5. Sustainable product innovation;Brezet,1998