1. Ost-west ist trumpf;Beneking;Photon,2012
2. Scalable methodology for the photovoltaic solar energy potential assessment based on available roof surface area: further improvements by ortho-image analysis and application to Turin (Italy);Bergamasco;Solar Energy,2011
3. Biljecki, F., 2013. The Concept of Level of Detail in 3D City Models – PhD Research Proposal. GISt Report No. 62. TU Delft. (accessed 03.09.14).
4. BKI, 2010. Statistische Kostenkennwerte für Bauelemente. BKI-Baukosten; 2010,2. Baukosteninformationszentrum Deutscher Architektenkammern, Rudolf Müller, Stuttgart.
5. Bräunche, E.O., Koch, M., 2014. Karlsruher Stadtgeschichte. Stadt Karlsruhe. (accessed 12.08.14).