Flückiger, MarkusFernandez, JoséPerriard, Yves2008-11-212008-11-212008-11-21200810.1109/ULTSYM.2008.0448https://infoscience.epfl.ch/handle/20.500.14299/31588WOS:000268845801040Adaptive Control of Ultrasonic Motors Using the Maximum Power Point Tracking Methodtext::conference output::conference proceedings::conference paper