@article{liao_wong_zhang_zheng_yang_2017, 
  title={Coding, Multicast, and Cooperation for Cache- Enabled Heterogeneous Small Cell Networks}, 
  volume={16}, 
  DOI={10.1109/twc.2017.2731967}, 
  number={10}, 
  publisher={Institute of Electrical and Electronics Engineers (IEEE)}, 
  author={Liao and Wong and Zhang and Zheng and Yang}, 
  year={2017}
  }