1. Darwin A, Perrier C, Foliot P (2007) The use of natural ester fluids in transformers. In Proceedings of MATPOST conference, Lyon (France), Paper 0036 (November 15–16, 2007)
2. Experiences in service with new insulating liquids, working group Cigre A2–35
3. Thomas A. Prevost Dielectric Properties of Natural Esters and their Influence on Transformer Insulation System Design and Performance.
4. 2nd International Conference on Innovations in Electrical and Civil Engineering ICIECE’2013) Dec. 17–18, 2013 Pattaya (Thailand)
5. Darwin A, Perrier C, Folliot P, The Use of natural ester fluids in transformers, MAT Post’07