1. Global Wind Energy Council. Global Wind Report: Annual Market Update 2013, published on 9th April 2014.
2. Wind turbine drivetrain condition monitoring - an overview;Sheng,2011
3. The prediction and diagnosis of wind turbine faults;Kusiak;Renew. Energy,2011
4. Fundamentals of Rotating Machinery Diagnostics;Bently,2003
5. Wind Turbine Operation and Maintenance Based on Condition Monitoring, Final Report, ECN-c-03–047;Verbruggen,2003