%V 140 %T Effect of molecular structure on oxidative degradation of ester based transformer oil %L scholars20664 %A Nurliyana A. Raof %A Robiah Yunus %A Umer Rashid %A Norhafiz Azis %A Z. Yaakub %O Cited by: 62 %D 2019 %J Tribology International %I Elsevier Ltd %R 10.1016/j.triboint.2019.105852