@article{Younis_2003,
title={Constraint-based routing in the internet: Basic principles and recent research},
volume={5},
ISSN={1553-877X},
url={http://dx.doi.org/10.1109/comst.2003.5342226},
DOI={10.1109/comst.2003.5342226},
number={1},
journal={IEEE Communications Surveys & Tutorials},
publisher={Institute of Electrical and Electronics Engineers (IEEE)},
author={Younis,
Ossama and Fahmy,
Sonia},
year={2003},
pages={2–13} }