Fina, Stefan, Angelika Krehl, Stefan Siedentop, Hannes Taubenböck, and Michael Wurm. 2014. “Getting Closer! New Ways of Integrating Geodata, Statistics and Remote Sensing to Analyze and Visualize Urban Structures Using Density Surfaces and -Profiles”. Raumforschung Und Raumordnung | Spatial Research and Planning 72 (3): 179–194. https://doi.org/10.1007/s13147-014-0279-6.