@techreport{eurostat2013economy-wide,
  title = {Economy-wide Material Flow Accounts (EW-MFA) Compilation Guide 2013}
  author = {Eurostat},
  url = {https://ec.europa.eu/eurostat/documents/1798247/6191533/2013-EW-MFA-Guide-10Sep2013.pdf/54087dfb-1fb0-40f2-b1e4-64ed22ae3f4c},
  year = {2013}
}