@INPROCEEDINGS {7529,
author={C.  Ferreira and B. Borges and L. V. Sá},
doi={},
booktitle={AES - Conf. Class D Audio Amplification},
title={Output Filter Solutions for Class D Power Amplifiers: Analysis, Characterization and Recent Developments},
year={2009},
month={August},
volume={-},
pages={---} 
}