1. Neue Trends in der Entwicklung von Rotorblättern;Schubert;Wind Energie Aktuell 2/1997,1997
2. Noise emission due to wind and mechanically induced surface vibrations on the rotorblade for wind turbines;Scherer,1997
3. The Aerpac blade condition monitoring system;Aerpac,1998
4. Strain and damage monitoring of wind turbine blades by piezoelectrics and fiber optic sensors;Güemes,1998