TY - JOUR A1 - Hoffschmidt, Bernhard A1 - Fend, Thomas A1 - Pitz-Paal, Robert A1 - Reutter, Oliver T1 - Two novel high-porosity materials as volumetric receivers for concentrated solar radiation / Thomas Fend ; Robert Pitz-Paal ; Oliver Reutter ... Bernhard Hoffschmidt JF - Solar energy materials & solar cells. 84 (2004), H. 1 Y1 - 2004 SN - 0927-0248 SP - 291 EP - 304 ER - TY - JOUR A1 - Hoffschmidt, Bernhard A1 - Fend, Thomas A1 - Pitz-Paal, Robert A1 - Reutter, Oliver T1 - Porous materials as open volumetric solar receivers - Experimental determination of thermophysical and heat transfer properties / Thomas Fend ; Bernhard Hoffschmidt ... JF - Energy. 29 (2004), H. 5 Y1 - 2004 SN - 0360-5442 SP - 823 EP - 834 ER -