1. Cost of renewable energy is falling, reports say, European wind energy association blog;Casey,2013
2. AWEA U.S. wind industry annual market report year ending 2012, American wind energy association, executive summary;AWEA,2013
3. Reducing uncertainty in wind project energy estimates: a cost-benefit analysis of additional measurement campaign methods, white paper;DNV KEMA & Second Wind,2012
4. (DNV KEMA), accurate wind assessements, pinning down performance;Drunsic,2012
5. State-of-the-art of wind resource assessments;Rodrigo,2010