@article{ramana2019the,
  title = {The efficient, the intensive, and the productive: Insights from urban Kaya scaling}
  author = {Ramana Gudipudi, Diego Rybski, Matthias K.B. Lüdeke, Bin Zhou, Zhu Liu, Jürgen P. Kropp},
  journal = {Applied Energy},
  doi = {10.1016/j.apenergy.2018.11.054},
  year = {2019}
}