@INPROCEEDINGS {6952,
author={S. M. A.  Cruz and A. Stefani and F. Filippetti and A. J. M. Cardoso},
doi={},
booktitle={International Conf. on Electrical Machines},
title={Diagnosis of Rotor Faults in Traction Drives for Railway Applications},
year={2008},
month={September},
volume={CD-ROM},
pages={1-6} 
}