Rui Chen, Xiaohong Chen, Long Bai, and Qian Tang. “Theoretical Analysis and Experimental Study of Time-Varying Electric Field and Electrostatic Adhesion Force Generated by Interdigital Electrode Arrays”. International Journal of Robotics and Automation Technology, vol. 1, no. 2, July 2021, pp.  87-98, doi:10.15377/2409-9694.2014.01.02.5.