Xue, N. , Merugu, S. , Martinez, I. , Sun, T. , Tsang, J. , Yen, S.. "A Polyimide Based Split-Ring Neural Interface Electrode for Neural Signal Recording". World Academy of Science, Engineering and Technology, Open Science Index 91, International Journal of Biomedical and Biological Engineering, (2014), 8(7), 362 - 364.