1. National Transportation Safety Board Accident Investigation WPR10GA102,2010
2. ABEC 5 (Annular Bearing Engineering Committee of the American Bearing Manufacturer's Association, Washington DC).
3. National Transportation Safety Board Materials Laboratory Factual Report 11-042, accident investigation WPR10GA102,2010
4. Electromagnetic shaft currents and demagnietization on rotors of turbines and compressors;Sohre,1978
5. Electric shaft currents in turbomachinery;Vance,1987