@article{Sobrinho_2002,
title={Algebra and algorithms for QoS path computation and hop-by-hop routing in the Internet},
volume={10},
ISSN={1063-6692},
url={http://dx.doi.org/10.1109/tnet.2002.801397},
DOI={10.1109/tnet.2002.801397},
number={4},
journal={IEEE/ACM Transactions on Networking},
publisher={Institute of Electrical and Electronics Engineers (IEEE)},
author={Sobrinho,
J.L.},
year={2002},
month=aug,
pages={541–550} }