Panneer Selvam, R., A. N. N. Nampoothiri, and R. Ramesh Babu. “Seismic Response Evaluation of Substation Equipment”. Power Research - A Journal of CPRI, Sept. 2014, pp. 617-22, https://node6473.myfcloud.com/~geosocin/CPRI/index.php/pr/article/view/804.