Stubkier, Soeren, Henrik C. Pedersen, and Torben O. Andersen. 2018. “DESIGN AND EXPERIMENTAL VALIDATION OF HYDRAULIC YAW SYSTEM FOR MULTI MW WIND TURBINE”. International Journal of Fluid Power 14 (2):27-38. https://journals.riverpublishers.com/index.php/IJFP/article/view/220.