Söffker, D.; Krajcin, I.; Heidtmann, F.: Observer-based control and disturbance compensation of elastic mechanical 2D-/3D-structures. Symposium Diagnosis and Control of Smart Structures and Multifunctional Materials. Proc. 2nd International Conference on Dynamics, Vibration, and Control, Beijing, China, August 23-26, 2006, 4 pages.