1. IEEE guide for the interpretation of gases generated in oil-immersed transformers. IEEE Standard C57.104-2008.
2. Guide for the sampling of gases and of oil-filled electrical equipment and for the analysis of free and dissolved gases. IEC Standard 60567, 2005.
3. Monitoring oil-cooled transformers by gas analysis;Dornenburg;Brown Boveri Review,1974
4. IEEE and IEC codes to interpret incipient faults in transformers using gas in oil analysis;Rogers;IEEE Transactions on Electrical Insulation,1978
5. Mineral oil-impregnated electrical equipment in service–guide to the interpretation of dissolved and free gases analysis. IEC Standard 60599, 2007.