“USING THE CAPABILITIES OF THE SPACE VECTOR OF CURRENT AND VOLTAGE FOR ASSESSMENT OF UNBALANCE IN ELECTRICAL SUPPLY SYSTEMS”, КНК, vol. 9, no. 1, pp. 102–108, Feb. 2021, Accessed: Oct. 12, 2026. [Online]. Available: https://csc.bfu.bg/index.php/CSC/article/view/245