Bubbling Inception Temperature in Power Transformers - Part 1: Comparative Study of Kraft Paper, Thermally Upgraded Kraft Paper, and Aramid Paper With Mineral Oil. - Ghada Gmati; Issouf Fofana; Patrick Picher; Fethi Meghnefi; Oscar Henry Arroyo-Fernandez; Djamal Rebaine; Youssouf Brahami; Yapi Marie Lucia Kouba (IEEE Access, 2025)