B. J Shah, G. N Pillai, and P. Agarwal, “An LMI Approach with Pole Placement Objective for the Design of Robust SSSC Controller for Damping Inter-Area Mode Oscillation Considering Global Signal”, IJET, vol. 7, no. 3.12, pp. 1017–1024, Jul. 2018, doi: 10.14419/ijet.v7i3.12.17624.