@INPROCEEDINGS {5977,
author={J. Santos and  Quadros and J. J. O.  Pires and J. M. Pedro},
doi={},
booktitle={Symp. on Enabling Optical Networks - SEON},
title={Design and Optimization of Protected Super-PON Access Networks Using a Dedicated Protection Ring Architecture},
year={2006},
month={June},
volume={X},
pages={1-2} 
}