@incollection{StrassnerKahl2020,
  author    = {C Strassner and J Kahl},
  title     = {Chapter 5 - Understanding a food systems approach},
  booktitle = {Raymond Auerbach (Hrsg.): Organic food systems: meeting the needs of Southern Africa},
  isbn      = {978 1 78639 960 1},
  year      = {2020},
}