@misc{BuchholzKirschTeitscheid2012,
  author    = {Buchholz, Wolfgang and Kirsch, Therese and Teitscheid, Petra},
  title     = {Sustainable raw material procurement as an answer to the risk of supply in food industry, Leuphana Sustainability Summit, L{\"u}neburg 2012},
  year      = {2012},
  language  = {en}
}