Hrbac, Roman, Tomas Mlcak, and Vaclav Kolar. “Improving Power Quality With the Use of a New Method of Serial Active Power Filter (SAPF) Control”. Elektronika ir Elektrotechnika 23, no. 1 (February 13, 2017): 15-20. Accessed March 29, 2024. https://eejournal.ktu.lt/index.php/elt/article/view/17578.