K.-J. Riffelmann

Development and test of an experiment to replace broken glass envelopes of receiver tubes in parabolic trough collectors

Robert Pitz-Paal, K.-J. Riffelmann, M. Böhmer, 1999 .

Parascan: a new parabolic trough flux scanner

K.-J. Riffelmann, Andreas Neumann, M. Wittkowski, 2003 .

Recent Developments in Solar Photochemistry Status and Perspectives

K.-H. Funken, K.-J. Riffelmann, J. Ortner, 1996 .

Comparitive Assessment of Solar Concentartor Materials

Robert Pitz-Paal, Dirk Krüger, Bernhard Hoffschmidt, 2002 .