1. Making tourism more sustainable – a guide for policy makers;UNEP,2005
2. Basic orientations for the sustainability of European tourism (Commission Communication to the Council, the European Parliament, the Economic and Social Committee and the Committee of the Regions);European Commission,2003
3. Exploring the evolution of tourism resorts;Papatheodorou;Annals of Tourism Research,2004
4. Performance measurement in the value chain: manufacturing v. tourism;Yildirim;International Journal of Productivity and Performance Management,2006
5. Stevels A. Green supply chain management much more than questionnaires and ISO 14.001. In: 2002 IEEE international symposium on electronics and the environment; 2002. p. 96–100.