1. The design of an ultra-high flux solar test capability;Lewandowski,1989
2. Irradiance and sunshape measurements for the Cologne site;Neumann,1992
3. Measurement of Concentrated solar radiation with the HERMES-II System at the PSA;Neumann,1993
4. Concentration of solar radiation with a 1.5 m searchlight reflector: the project DISKUS;Neumann,1994
5. Velocity-controlled tracking of the sun;Schubnell;Solar Energy Mater.,1990