1. Making Tourism More Sustainable: A Guide for Policy Makers,2005
2. UNWTO’s Declaration on Tourism and the Millennium Development Goals: Harnessing Tourism for the Millennium Development Goals,2006
3. http://sustainabletourismcharter2015.com/wp-content/uploads/2016/04/ST-20CharterMR.pdf
4. Agenda for a Sustainable and Competitive European Tourism,2007
5. Communication from the Commission to the European Parliament, the Council, the European Economic and Social Committee and the Committee of the Regions—Europe, the world’s No 1 Tourist Destination—A new Political Framework for Tourism in Europe,2010