@article{hillman2010greenhouse,
  title = {Greenhouse Gas Emission Footprints and Energy Use Benchmarks for Eight U.S. Cities}
  author = {Hillman, Tim; Ramaswami, Anu},
  journal = {Environmental Science & Technology},
  url = {https://doi.org/10.1021/es9024194},
  doi = {10.1021/es9024194},
  year = {2010}
}