1. Feuer, Blitz und Funke;Prinz,1965
2. Wolfgang Kleber, Dissertation B, HfV, Dresden, 1975.
3. Dielectric properties of magnetic liquids in high electric fields;Marton;Acta Physica Polonica,2008
4. A novel, ferrofluid-cooled transformer. Electromagnetic field and heat transfer by numerical simulation;Morega,2010
5. Characterization of transformer oil based magnetic fluid;Parekh;Indian Journal of Engineering & Materials Sciences,2004