@INPROCEEDINGS {320,
author={J.  Rebola and A. Cartaxo},
doi={},
booktitle={European Conf. on Networks and Optical Communications - NOC},
title={Impact of the spontaneous-spontaneous beat noise on the sensitivity of optically preamplified receivers with arbitrary optical filtering},
year={2002},
month={June},
volume={1},
pages={257-264} 
}