Hartz, Andrea, and Olaf Kühne. “Large-Scale Nature Conservation Projects As Impulse for a Pro-Active Landscape Policy in Urban and Post-Industrial Regions”. Raumforschung Und Raumordnung | Spatial Research and Planning, vol. 68, no. 5, Oct. 2010, pp. 341-55, https://doi.org/10.1007/s13147-010-0050-6.