2017, CIGRE TB-676

2006, CIGRE TB-296

L. Cheim, D. Platts, T. Prevost, S. Xu, 2012, Furan analysis for liquid power transformers, Electrical Insulation Magazine, IEEE, Vol. 28, pp. 8-21

X. Yi, Z. D. Wang, 2013, Surface Tracking on Pressboard in Natural and Synthetic Transformer Liquids under AC Stress, IEEE Transactions on Dielectrics and Electrical Insulation, Vol. 20, No. 5, pp. 1625-1634

W. Wang, B. Bao, J. Xu, B. Zhou, C. Li, 2011, Creepage dis-charge performance for high moisture pressboard, 2011 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, pp. 480-483

M. T. Imani, P. Werle, A. Kurz, J. Schuebe, 2017, Online Oil Monitoring on Power Transformers - Investigations on Techni- cal and Economical Requirements, The 20th International Symposium on High Voltage Engineering, Argentina, No. 363