@book{SchmitzGoettscheHoffschmidt2009,
  author    = {Schmitz, Stefan and G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard},
  title     = {Entwicklung von Mikrospiegelsystemen f{\"u}r solarthermische Kraftwerke (Mikrohelix) [Elektronische Ressource] : Abschlussbericht ; Berichtszeitraum: 01.07.2006 - 30.06.2009},
  publisher = {FH Aachen, Campus J{\"u}lich, Solar-Inst. [u.a.]},
  address   = {J{\"u}lich},
  pages     = {Online-Ressource (81 S., 2,83 MB) : Ill., graph. D},
  year      = {2009},
  language  = {de}
}
@inproceedings{BaumannTeixeiraBouraEcksteinetal.2011,
  author    = {Baumann, Torsten and Teixeira Boura, Cristiano Jos{\´e} and Eckstein, Julian and Felinks, Jan and G{\"o}ttsche, Joachim and Hoffschmidt, Bernhard and Schmitz, Stefan and Zunft, Stefan},
  title     = {Air-sand heat exchanger},
  series = {6th International Renewable Energy Storage Conference (IRES 2011) : November 28 - 30, 2011, bcc Berlin Congress Center, Berlin, Germany / EUROSOLAR ...},
  booktitle = {6th International Renewable Energy Storage Conference (IRES 2011) : November 28 - 30, 2011, bcc Berlin Congress Center, Berlin, Germany / EUROSOLAR ...},
  publisher = {Eurosolar},
  address   = {Bonn},
  pages     = {1 CD-ROM},
  year      = {2011},
  language  = {de}
}