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3. IEC. IEC 61400-1, Wind Turbines-Part 1: Design Requirements, 2005.
4. IEC. IEC 61400-3, Wind Turbines-Part 3: Design Requirements for Offshore Wind Turbines, TC88 WG3 Committee Draft, 2005.
5. NDV. Offshore Standard DNV-OS-J101: Design of Offshore Structures, June 2004.