1. http://www.capecodtoday.com/blogs/index.php/2008/03/05/boston_airport_installs_its_own_wind_far?blog=53.
2. http://www.renewableenergyworld.com/rea/news/article/2009/08/denver-airport-to-expand-solar-use-by-1-6-mw.
3. http://www.communityenergyinc.com/about-us/press-releases/press-release-detail/article/philadelphia-international-airport-makes-largest-renewable-energy-purchase-among-nations-airports/.
4. http://www.brusselsairport.be/en/community/232889/energiebesparing.
5. New airport of Thessaloniki: a new operational and aesthetic analysis;Mouzakis,2003