M. Schäfer, A. Herde, und C. Kropp. System Innovation for Sustainability 3: Case Studies in Sustainable Consumption and Production – Food and Agriculture, Greenleaf Publishing, Sheffield, (2010)
M. Schäfer, A. Herde, und C. Kropp. System Innovation for Sustainability 3: Case Studies in Sustainable Consumption and Production – Food and Agriculture, Greenleaf Publishing, Sheffield, (2010)