@article{helmut2012global,
  title = {Global effects of national biomass production and consumption: Austria's embodied HANPP related to agricultural products in the year 2000}
  author = {Helmut Haberl, Thomas Kastner, Anke Schaffartzik, Nikolaus Ludwiczek, Karl-Heinz Erb},
  journal = {Ecological Economics},
  doi = {10.1016/j.ecolecon.2012.09.014},
  year = {2012}
}