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General Background Matrix Algebra Extensions of the Z-Matrix Short-Circuit Program to Include Very Large Systems Single-Phase Short Circuits State-Estimation Load Flow Solutions The Economics of Operating a Power System Optimum Load Flow Transient Stability High-Speed Reduced-Accuracy Power Flow Calculations for Contingency Evaluation and Maximum Interchange Capability Determinations Appendixes Index.
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Brown et al. (1976) studied this question.
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