@inproceedings{zou2011optimal,
  title={Optimal Layered Multicast with Source Rate Adaption in Two-Level Hierarchical Overlay Networks},
  author={Zou, Junni and Li, Leyang and Xiong, Hongkai},
  booktitle={Communications (ICC), 2011 IEEE International Conference on},
  pages={1--5},
  year={2011},
  month={June},
  organization={IEEE},
  address={Kyoto, Japan}
}