[1]
Birkmann, J. 2003. From monitoring to controlling: Refining sustainability indicators for regional planning, with special reference to a monitoring and controlling system for “commercial space”. A case-study from Eastern Thuringia. Raumforschung und Raumordnung | Spatial Research and Planning. 61, 5 (Sep. 2003), 357–370. DOI:https://doi.org/10.1007/BF03183879.