@article{zhang_wu_gao_chen_2017, 
  title={Free Talk in the Air: A Hierarchical Topology for 60 GHz Wireless Data Center Networks}, 
  volume={25}, 
  DOI={10.1109/tnet.2017.2755670}, 
  publisher={Institute of Electrical and Electronics Engineers (IEEE)}, 
  author={Zhang and Wu and Gao and Chen}, 
  year={2017}
  }