1. . Present Status on the Development of Permanent Magnet Synchronous Motor for Rail Traction, 2002 National Convention Rec., IEE Japan, 2002.3; 473–476.
2. , , . Effect of the Permanent Magnet Synchronous Motor for Rail Vehicle, 38th Symposium on Railway Cybernetics, No.507 2001.11.
3. , . Progress of Traction Motor for Rail Vehicle -From DC Motor to Induction Motor, and to Permanent Magnet Synchronous Motor, Papers of Technical Meeting on Rotating Machinery, IEE Japan, RM-05-138, (2005.10).