1. IEEE: IEEE Guide for Electric Power Distribution Reliability Indices, IEEE Std 1366 (2001)
2. IEEE: IEEE Recommended Practice for Monitoring Electric Power Quality, IEEE Std 1159 (1995)
3. Math, H.J., et al.: Voltage-Sag Indices–Recent Developments in IEEE P1564 Task Force, pp. 34–41 (2003)
4. IEEE: IEEE Recommended Practices and Requirements for Harmonic Control in Electrical Power Systems, IEEE Std 519 (1992)
5. Billinton, R., et al.: Reliability Evaluation of Power Systems. Plenum Press (1984)