R. Sarathi and  M. G. Danikas and  Y. Chen and  T. Tanaka,  Understanding Charge Dynamics in Elastomers Adopting Pulsed Electro Acoustic (PEA) Technique.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2009, vol. 26(2). 308 - 313
    [viewed 19 January 2020]. Available from: https://publications.waset.org/pdf/12999.