@article{gu2018greening,
  title = {Greening cloud data centers in an economical way by energy trading with power grid}
  author = {Gu, Chonglin and Fan, Longxiang and Wu, Wenbin and Huang, Hejiao and Jia, Xiaohua},
  journal = {Future Generation Computer Systems},
  url = {https://www.sciencedirect.com/science/article/pii/S0167739X16308330},
  year = {2018}
}