TY - JOUR A1 - Hoffschmidt, Bernhard A1 - Pitz-Paal, Robert A1 - Böhmer, M. T1 - A new closed/open volumetric receiver concept for parabolictrough collectors (test results) T2 - Journal de physique. 9 (1999), H. 3 Y1 - 1999 UR - https://opus.bibliothek.fh-aachen.de/opus4/frontdoor/index/index/docId/2692 SN - 1155-4339 SP - 3 ER -