1. Agrawal, B.L., Farmer, R.G.: Use of frequency scanning techniques for subsynchronous resonance analysis. IEEE Transactions on Power Apparatus and Systems, vol. PAS-98, Issue: 2, IEEE (1979)
2. Anderson, P.M., Farmer, R.G.: Series Compensation of Power Systems. PBLSH! Inc., Encinitas (1996)
3. Anderson, P.M., Fouad, A.A.: Power System Control and Stability. Piscataway, N.J.: IEEE Press (1993)
4. CIGRE CC02: Guide for assessing the network harmonic impedance. Electra 167, Aug 1996
5. CIGRE JTF 36.05.02/14.03.03: AC system modelling for AC filter design – an overview of impedance modelling. Electra 164, Feb 1996