1. J.L. Roux, J.P. Vasseur, J. Boyle, Requirements for inter-area MPLS traffic engineering, in: IETF RFC 4105, 2005.
2. ITU-T Recommendation G.7715/Y.1706, architecture and requirements for routing in the automatically switched optical network, 2002.
3. Hierarchical routing in multi-domain optical networks;Liu;Computer Communications,2006
4. A. Farrel, J.-P. Vasseur, J. Ash, A path computation element (PCE) based architecture, in: IETF RFC 4655, August 2006.
5. J.P. Vasseur, A. Ayyangar, R. Zhang, A per-domain path computation method for establishing inter-domain traffic engineering (TE) label switched paths (LSPs), IETF Internet-draft draft-ietf-ccamp-inter-domain-pd-pathcomp-05, Work in Progress, April 2007.