Lee, D. , Lee, S. , Yoon, B. , Jho, J. , Rhee, K. (2014), 'Preliminary Study on Analysis of Pinching Motion Actuated by Electro-Active Polymers', World Academy of Science, Engineering and Technology, Open Science Index 89, International Journal of Mechanical and Mechatronics Engineering, 8(5), 919 - 921.