1. IEEE System Dynamic Performance Subcommittee, 1990, Voltage Stability of Power Systems: Concepts, Analytical Tools and Industry Experience, IEEE/PES Publication 90TH0358-2-PWR.
2. Y. Mansour, ed., 1993, Suggested Techniques for Voltage Stability Analysis, IEEE Working Group on Voltage Stability, Publication 93TH0620-5-PWR.
3. Voltage Stability of Electric Power Systems