@book{haberl2016social,
  title = {Social Ecology}
  author = {Haberl, Helmut and Fischer-Kowalski, Marina and Krausmann, Fridolin and Winiwarter, Verena},
  url = {http://link.springer.com/10.1007/978-3-319-33326-7},
  year = {2016}
}