@article{patricio2015uncertainty,
  title = {Uncertainty in Material Flow Analysis Indicators at Different Spatial Levels}
  author = {Patrício, João and Kalmykova, Yuliya and Rosado, Leonardo and Lisovskaja, Vera},
  journal = {Journal of Industrial Ecology},
  doi = {10.1111/jiec.12336},
  year = {2015}
}