1. IEEE, Special publication 90TH0358-2-PWR, voltage stability of power systems
2. CIGRE Task Force 38-02-10, Modeling of voltage collapse including dynamic phenomena (1993)
3. Reports of 230_/400 kV transmission system faults in Iran’s Power Network, National Dispatching Department of Iran (January 2001)
4. Voltage stability of power systems: concepts, analytical tools, and industry experience. IEEE Publication 90 TH0358-2-PWR, IEEE Service Center, New Jersey (1990)
5. Dehnel, M., Dommel, H.W.: A method for identifying weak nodes in non-convergent load flows. IEEE Trans. Power Syst. 4(2), 801–806 (1989)