Investigating power system stability limits. - E. Vournas; Nikos G. Sakellaridis; Michael E. Karystianos; Nicholas G. Maratos (ISCAS, 2006)

Region of attraction in a power system with discrete LTCs. - Costas D. Vournas; Nikos G. Sakellaridis (IEEE Trans. Circuits Syst. I Regul. Pap., 2006)

Critical load-shedding time calculation based on region of attraction limits. - Nikos G. Sakellaridis; Costas D. Vournas (ISCAS, 2010)