Kaufer, Ricardo, Max Krott, Christiane Hubo, and Lukas Giessen. 2013. “The Potentials of Agricultural Policy and Spatial Planning Policy for Ecological and Economic Sustainable Rural Development”. Raumforschung Und Raumordnung | Spatial Research and Planning 71 (5): 381–396. https://doi.org/10.1007/s13147-013-0244-9.