Chun-Yao Lee and Siang-Ren Wang, A Study of Grounding Grid Characteristics with Conductive Concrete. journal = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology. December 2009, vol. 36(12). 2229 - 2234 [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/4042.