Yamaguchi, T. , Fujii, Y. , Takita, A. , Kanai, T. (2012), 'FEA for Transient Responses of an S-Shaped Force Transducer with a Viscoelastic Absorber Using a Nonlinear Complex Spring', World Academy of Science, Engineering and Technology, Open Science Index 71, International Journal of Mechanical and Mechatronics Engineering, 6(11), 2401 - 2408.