@article{tukker2009towards,
  title = {Towards a global multi-regional environmentally extended input-output database}
  author = {Tukker, Arnold and Poliakov, Evgueni and Heijungs, Reinout and Hawkins, Troy and Neuwahl, Frederik and Rueda-Cantuche, José M. and Giljum, Stefan and Moll, Stephan and Oosterhaven, Jan and Bouwmeester, Maaike},
  journal = {Ecological Economics},
  doi = {10.1016/j.ecolecon.2008.11.010},
  year = {2009}
}