1. EC (European Commission). Directive 2009/28/EC of the European Parliament and of the Council of 23 April 2009 on the promotion of the use of energy from renewable sources and amending and subsequently repealing Directives 2001/77/EC and 2003/30/EC. Brussels: European Commission; 2009.
2. The wind energy (r)evolution: a short review of a long history;Kaldellis;Renew Energy,2011
3. EWEA (European Wind Energy Association). Wind in power – 2014 European statistics, Brussels: EWEA; 2015.
4. EWEA (European Wind Energy Association). Pure Power – Wind energy targets for 2020 and 2030, Brussels: EWEA; 2011.
5. EWEA (European Wind Energy Association). Wind in power – 2011 European statistics, Brussels: EWEA; 2012.