Gatzweiler, Hans-Peter, and Robert Kaltenbrunner. “Spatial Development Is Urban Development Is Spatial Development: The Indivisibility of Thematic Contexts”. Raumforschung Und Raumordnung | Spatial Research and Planning, vol. 66, no. 2, Mar. 2008, pp. 139–151, https://doi.org/10.1007/BF03183124.