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LibreCat: /record/8926
DOI: 10.1109/ULTSYM.2002.1193485

Hemsel, T., &; Wallaschek, J. (2000). State of the art and development trends of ultrasonic linear motors. In Ultrasonics Symposium, 2000 IEEE (Vol. 1, pp. 663–666 vol.1).https://doi.org/10.1109/ULTSYM.2000.922635 
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DOI: 10.1109/ULTSYM.2000.922635