@inproceedings{ZinkBergerKlipfeletal.2011, author = {Markus H. Zink and Frank Berger and V. Klipfel and Andreas K{\"u}chler}, title = {Ageing Condition Assessment of 400 kV OIP Generator Transformer Bushings}, booktitle = {17th ISH International Symposium on High Voltage Engineering}, year = {2011}, }