@article{chen2016city,
  title = {City Carbon Footprint Networks}
  author = {Chen, Guangwu and Wiedmann, Thomas and Hadjikakou, Michalis and Rowley, Haze},
  journal = {Energies},
  url = {https://www.mdpi.com/1996-1073/9/8/602},
  doi = {10.3390/en9080602},
  year = {2016}
}