Op basis van de GML open geodata van de Top10NL (basisregistratie Topografie, Kadaster 2011), vrijgegeven door Kadaster op 1-1-2012 onder de Creative Commons BY licentie. Gebouwvlakken uit Open Geodata BAG extract (januari 2012).
Samenstelling en kleurenschema: Jan-Willem van Aalst, met QuantumGIS en Photoshop.
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