@article{butt2018framework,
  title = {Framework for Urban Metabolism and Life Cycle Assessment of Hardscape}
  author = {Butt, Ali A.; Harvey, John T.; Kendall, Alissa; Li, Hui; Zhu, Yuxin},
  journal = {Factor X: Challenges, Implementation Strategies and Examples for a Sustainable Use of Natural Resources},
  url = {https://escholarship.org/uc/item/77g742tq},
  year = {2018}
}