@incollection{Kirsch2013,
  author    = {Therese Kirsch},
  title     = {Reasonable selection of sustainable sourcing measures in the food sector},
  booktitle = {Holger Rogall et al. (Hrsg.): Jahrbuch Nachhaltige {\"O}konomie 2013 - 2014},
  isbn      = {978-3-7316-1043-4},
  year      = {2013},
}