Rolfes, M. 2003. Enlargement of scope for municipal action by european subsidy policy: Potentials and perspectives examined in case studies from the Oldenburg region (Western Lower Saxony). Raumforschung und Raumordnung | Spatial Research and Planning. 61, 4 (Jul. 2003), 259–267. DOI:https://doi.org/10.1007/BF03182961.