@article{an2019,
  title = {An integrated analysis of input and output flows in an urban carbon metabolism using a spatially explicit network model}
  journal = {Factor X: Challenges, Implementation Strategies and Examples for a Sustainable Use of Natural Resources},
  url = {https://www.sciencedirect.com/science/article/pii/S0959652619329336},
  doi = {10.1016/j.jclepro.2019.118063},
  year = {2019}
}