@article{wei2011the,
  title = {The Development and Practice in City Level of Material Flow Analysis (MFA) in China}
  author = {Wei, Liu; Wenxin, Tian; Chaofan, Chen; Liang, Liu; Yun, Liu},
  journal = {Energy Procedia},
  url = {https://www.infona.pl//resource/bwmeta1.element.elsevier-df2be43a-2b40-3194-b8a3-b6f1df82ca15},
  doi = {10.1016/j.egypro.2011.10.859},
  year = {2011}
}