J. Wosik, M. Kalus, A. Kozlowski, B. Miedzinski, and M. Habrych, “The Efficiency of Reactive Power Compensation of High Power Nonlinear Loads”, ELEKTRON ELEKTROTECH, vol. 19, no. 7, pp. 29–32, Sep. 2013, doi: 10.5755/j01.eee.19.7.5158.