Mohammadzadeh, B., R. Gholizadeh-Roshanagh, and S. N. Ravadanegh. “Optimal Designing of SSSC Based Supplementary Controller for LFO Damping of Power System Using COA”. ECTI Transactions on Electrical Engineering, Electronics, and Communications, vol. 12, no. 2, Sept. 2014, pp. 64-72, doi:10.37936/ecti-eec.2014122.170827.