R. D. Henderson, P. J. Rose, 1994, Harmonics: the effects on power quality and transformers, IEEE Transactions on Industry Applications, Vol. 30, No. 3, pp. 528-532

V. E. Wagner, 1993, Effects of harmonics on equipment, IEEE Transactions on Power Delivery, Vol. 8, No. 2, pp. 672-680

M. A. Stošović, M. Dimitrijević, S. Bojanić, O. Nieto-Taladriz, V. Litovski, 2016, Characterization of Nonlinear Loads in Power Distribution Grid, Facta Universitatis, Series: Electronics and Energetics, Vol. 29, No. 2, pp. 159-175

V. T. Kullarkar, V. K. Chandrakar, 2017, Power Quality Analysis in Power System with Non Linear Load, International Journal of Electrical Engineering, Vol. 10, No. 1, pp. 33-45

T. L. Lee, S. H. Hu, 2016, An active filter with resonant current control to suppress harmonic resonance in a distribution power system, IEEE Journal of Emerging and Selected Topics in Power Electronics, Vol. 4, No. 1, pp. 198-209

XieBin, DaiKe, WeiXueLiang, KangYong, 2008, Flexible compensate arithmetic of the three-phase four-wire Active Power Filter, pp. 1-4

Michael T. Heideman, Don H. Johnson, C. Sidney Burrus, 1985, Gauss and the history of the fast fourier transfor, Archive for History of Exact Sciences, Vol. 34, No. 3, pp. 265-277

Stefan Worner, 2008, Fast fourier transform, pp. 10

Saeed Golestan, Josep M. Guerrero, 2015, Conventional Synchronous Reference Frame Phase-Locked Loop is an Adaptive Complex Filter, IEEE Transactions on Indusctrial Electronics, Vol. 62, No. 3, pp. 1672-1682

Bahram Shakerighadi, Esmaeil Ebrahimzadeh, Mads Graungaard Taul, Frede Blaabjerg, Claus Leth Bak, 2020, Modeling and Adaptive Design of the SRF-PLL: Nonlinear Time-Varying Framework, IEEE Access, Vol. 8, pp. 28635-28645

S. Butterworth, 1930, On the Theory of Filter Amplifiers, Experimental Wireless and the Wireless Engineer, pp. 536-541