@techreport{graedel2011recycling,
  title = {Recycling rates of metals: A status report}
  author = {Graedel, TE and Allwood, Julian and Birat, Jean-Pierre and Buchert, Matthias and Hagelüken, Christian and Reck, Barbara K and Sibley, Scott F and Sonnemann, Guido},
  doi = {978-92-807-3161-3},
  year = {2011}
}