1. Fink LH, editor. Proc. Bulk Power System Voltage Phenomena II—Voltage Stability and Security, ECC Inc., Fairfax, VA, August 1991.
2. Fink LH, editor. Proc. Bulk Power System Voltage Phenomena—Voltage Stability and Security, EEC Inc., Fairfax, VA, EL-6183 EPRI, January 1989.
3. Fink LH, editor. Proc. Bulk Power System Voltage Phenomena III—Voltage Stability and Security, ECC Inc., Fairfax, VA, August 1994.
4. Bifurcation theory and its application to nonlinear dynamical phenomena in an electrical power system;Ajjarapu;IEEE Trans Power Systems,1992
5. On bifurcations, voltage collapse and load modeling;Gañizares;IEEE Trans Power Systems,1995