A S Kudratillaev, and R O Rayimov. “Effective Methods for Diagnostics of High Voltage Power Transformers of Large Power Plants”. Global Journal of Science Frontier Research 21, no. H1 (January 15, 2021): 1–11. Accessed May 19, 2024. https://journalofscience.org/index.php/GJSFR/article/view/2877.