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2. Langreder W., Hohlen H., Kaiser K. (2002) Proceedings of Global Windpower Conference, published by EWEA as CD-Rom
3. The symbol (…)ij indicates that first the square root of the diagonalized matrix D(2) has to be taken; successively a back transformation gives the ij -coefficients.
4. Rauh A., Peinke J. (2003) J. Wind Eng. Ind. Aerodyn. 92:159-183
5. Boettcher F. (2005) PhD-thesis, University of Oldenburg