@article{kennedy2015energy,
  title = {Energy and material flows of megacities}
  author = {Kennedy, Christopher A. and Stewart, Iain and Facchini, Angelo and Cersosimo, Igor and Mele, Renata and Chen, Bin and Uda, Mariko and Kansal, Arun and Chiu, Anthony and Kim, Kwi-gon and Dubeux, Carolina and Lebre La Rovere, Emilio and Cunha, Bruno and Pin},
  journal = {Proceedings of the National Academy of Sciences of the United States of America (PNAS)},
  url = {https://www.researchgate.net/publication/275586186_Energy_and_material_flows_of_megacities/comments?focusedCommentId=5a574c394cde266d5881ff64&sldffc=0},
  doi = {10.1073/pnas.1504315112},
  year = {2015}
}