@ARTICLE{Reaz07, 
author={Ahmed, R. and Limam, N. and Xiao, J. and Iraqi, Y. and Boutaba, R.}, 
journal={Communications Surveys Tutorials, IEEE}, title={Resource and service discovery in large-scale multi-domain networks}, 
year={2007}, 
month=quarter , 
volume={9}, 
number={4}, 
pages={2 -30}, 
}