@article{zulauf_wagner_kassel_2021, 
  title={Urban and Rural Sustainability: Divergent Concepts and Their Consequences for Marketing}, 
  DOI={10.17170/kobra-202107294426}, 
  publisher={Universität Kassel}, 
  author={Zulauf, Katrin and Wagner, Ralf and Kassel}, 
  year={2021}, 
  month={Aug}
  }