Portilla, Wilder. “Modern Diagnostic Methods in Power Transformers, Based on Dielectric Polarization”. ITEGAM-JETIA 3, no. 12 (December 13, 2017): 77-84. Accessed November 18, 2024. http://br940.teste.website/~itegamjetia/journal/index.php/jetia/article/view/81.