1. P. Sørensen, A.D. Hansen, L. Janosi, B. Bak-Jensen, F. Blaabjerg, J. Bech, Simulation of wind farm interaction with grid, 2001 European Wind Energy Conference and Exhibition, 2–6 July 2001, Copenhagen, DK.
2. IEC 61400-21, Ed.1: Wind turbine generator systems—Part 21: measurement and assessment of power quality characteristics of grid connected wind turbines, Final Draft International Standard 88/144/FDIS International Electrotechnical Commission, IEC 2001-07-01.
3. Model for power spectra of the blade of a wind turbine measured from the moving frame of reference;Kristensen;J. Wind Eng. Ind. Aerodyn.,1982
4. J. Tande, P. Sørensen, M. Galal, U. Naoman, E. Mansour, A. Hewehy, A. Maghawry, I. Darweesh, Hurghada Wind Energy Technology Centre Demostration Wind Farm Studies, Power Quality Assessment, Risø-I-1141(EN), September 1997.
5. P. Sørensen, Methods for calculation of the flicker contribution from wind turbines Risø-I-939, 1995, Risø National Laboratory, Roskilde, Denmark.