1. Brendan Fox, Damian Flynn, Leslie Bryans, Nick Jenkins, David Milborrow, Mark O’Malley, Richard Watson and Olimpo Anaya-Lara. «Wind Power Integration: Connection and system operational aspects». IET – The Institute of Engineering and Technology. 2007. ISBN: 978-0-86341-449-1. 2007.
  2. Fernando D. Bianchi, Hernán De Battista and Ricardo J. Mantz. «Wind Turbine Control Systems: Principles, Modelling and Gain Scheduling Design». Springer Science. ISBN-10: 1-84628-492-9. 2007.