@ARTICLE{4413147, author={Hou, Y. Thomas and Shi, Yi and Sherali, Hanif D.}, journal={IEEE Journal on Selected Areas in Communications}, title={Spectrum Sharing for Multi-Hop Networking with Cognitive Radios}, year={2008}, volume={26}, number={1}, pages={146-155}, doi={10.1109/JSAC.2008.080113}}