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2. A case for including atmospheric thermodynamic variables in wind turbine loading parameters identification. NREL/CP-500-26829, National Renewable Energy Laboratory, Golden, CO, 1999: 1-16.
3. A Wavelet Tour of Signal Processing. Academic Press: San Diego, CA, 1998.
4. Atmospheric performance testing of the special purpose thin airfoil family: preliminary results. NREL/TP-257-3628, National Renewable Energy Laboratory, Golden, CO, 1989: 1-6.
5. A progress report on the characterization and modeling of a very flexible turbine design. NREL/CP-500-25513, National Renewable Energy Laboratory, Golden, CO, 1998: 1-10.