Zhang, Mingzhu, and Zhenxing Li. “Analysis of Key Factors Affecting Electronic Transformer Calibration System Error”. Elektronika ir Elektrotechnika 19, no. 5 (May 1, 2013): 39-44. Accessed November 21, 2024. https://eejournal.ktu.lt/index.php/elt/article/view/1674.