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2. Rigid XYθ table for Ultraprecision Machine Tool Driven by Means of Walking Drive;Shamoto;Annals of the CIRP,1997
3. Shamoto, E. and Moriwaki, T., 1992, Walking Drive -A New Precision Feed Drive, IMACS/SICE RM2S′92 Kobe: 231–236.
4. Burleigh Instrument Inc. Catalog.
5. Precise Positioner Utilizing Rapid Deformations of a Piezoelectric Element (in Japanese);Higuchi;J. JSPE,1988