1. Climate Change Impacts and Adaptation in Winter Tourism. Climate Change in the European Alps: Adapting Winter Tourism and Natural Hazards Management;Abegg,2007
2. The Economic Significance of the Australian Alpine Resorts;Alpine Resorts Co-ordinating Council,2006
3. Aspen Ski Company, 2009: CEO Kaplan visits with senators on climate change. [Available online at http://www.aspensnowmass.com/companyinfo/mediacenter/newslist.cfm?id=813&printerfriendly=1.]
4. Tourism and Climate Change – Risks and Opportunities;Becken,2007
5. Global environmental change in mountain regions: an overview;Beniston;Geogr. Helv.,2000