“THREE-PHASE CURRENT HARMONIC STUFF ESTIMATOR FOR SHUNT ACTIVE POWER FILTERS”. Visnyk of Vinnytsia Politechnical Institute, no. 2 (May 13, 2016): 57–62. Accessed October 11, 2026. https://visnyk.vntu.edu.ua/index.php/visnyk/article/view/1901.