Fernandez Lopez, JoséFlückiger, MarkusPerriard, Yves2008-12-192008-12-192008-12-19200810.1109/ULTSYM.2008.0352https://infoscience.epfl.ch/handle/20.500.14299/32863WOS:000268845800352Study of a Hollow Ultrasonic Rotary Motortext::conference output::conference proceedings::conference paper