Alomari Μ. Μ., M. S. Widyan, M. Abdul-Niby, and A. Gheitasi. 2017. “Hopf Bifurcation Control of Subsynchronous Resonance Utilizing UPFC”. Engineering, Technology & Applied Science Research 7 (3). Greece:1588-94. https://doi.org/10.48084/etasr.1142.