@article{HoffschmidtFendPitzPaaletal.2006,
  author    = {Bernhard Hoffschmidt and Thomas Fend and Robert Pitz-Paal and Oliver Reutter},
  title     = {Two novel high-porosity materials as volumetric receivers for concentrated solar radiation / Thomas Fend ; Robert Pitz-Paal ; Oliver Reutter ... Bernhard Hoffschmidt},
  journal   = {Solar energy materials \& solar cells. 84 (2004), H. 1},
  pages     = {291 -- 304},
  year      = {2006},
}