Yulin Si, ; Dahai Zhang, ; Karimi, Hamid Reza: 'Structural control concept for load reduction of offshore wind turbines' (Energy Engineering, 2018), 'Structural Control and Fault Detection of Wind Turbine Systems', Chap. 4, pp. 81-111, DOI: 10.1049/PBPO117E_ch4
IET Digital Library, https://digital-library.theiet.org/;jsessionid=hfxy90jotnyk.x-iet-live-01content/books/10.1049/pbpo117e_ch4