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2. Martin Hagmann. Analysis of the Reflection Properties.of Solar Mirror Materials by Measuring the BRDF to Enhance the Precision of State of the Art Methods. Diploma Thesis. Karlsruhe Institute of Technology; May 2012.
3. German Patent DE 10 2012 214 019.0. Photogoniometrisches Reflektometer - Mirror Reflectance Function Analyzer (MIRA).
4. ASTM 1048-87. Standard Test Method for Measuring the Effective Surface Roughness of Optic Components by Total Integrated Scattering. .
5. Gregory J. Ward. Measuring and Modeling Anisotropic Reflection. Siggraph ‘92 Chicago, July 26-31, Computer Graphics 26, 2, July 1992 .