@INPROCEEDINGS {3229,
author={L. Gouveia and P. Patrício and A. F. Sousa},
doi={},
booktitle={International Network Optimization Conf. - INOC},
title={Hop-Constrained Node Survivable Network Design: an Application to MPLS over WDM},
year={2005},
month={March},
volume={3},
pages={710-717} 
}