@article{ClausenBlaettelMinkErdmannetal.2011,
  author    = {Jens Clausen and Birgit Bl{\"a}ttel-Mink and Lorenz Erdmann and Christine Henseling},
  title     = {Contribution of online trading of used goods to resource efficiency : an empirical study of eBay users},
  journal   = {Sustainability},
  volume    = {2},
  number    = {6},
  pages     = {1810 -- 1830},
  doi       = {10.3390/su2061810},
  year      = {2011},
}