@article{GoebelGeskesGeyeretal.1997,
  author    = {Goebel, O. and Geskes, P. and Geyer, Michael and Henneke, K. and Herrmann, Ulf},
  title     = {Direkte Dampferzeugung in Parabolrinnen-Solarkraftwerken},
  series = {Strom aus Sonne und Wind. - (Themen / Forschungsverbund Sonnenenergie ; 96/97)},
  journal   = {Strom aus Sonne und Wind. - (Themen / Forschungsverbund Sonnenenergie ; 96/97)},
  publisher = {Forschungsverb Sonnenenergie},
  address   = {K{\"o}ln},
  issn      = {0939-7582},
  pages     = {110 -- 116},
  year      = {1997},
  language  = {de}
}
@article{DerschGeyerHerrmannetal.2004,
  author    = {Dersch, J{\"u}rgen and Geyer, Michael and Herrmann, Ulf and Jones, Scott A. and Kelly, Bruce and Kistner, Rainer and Ortmanns, Winfried and Pitz-Paal, Robert and Price, Henry},
  title     = {Trough integration into power plants—a study on the performance and economy of integrated solar combined cycle systems},
  series = {Energy : the international journal},
  volume    = {29},
  journal   = {Energy : the international journal},
  number    = {5-6 (Special Issue SolarPaces)},
  issn      = {0360-5442},
  doi       = {10.1016/S0360-5442(03)00199-3},
  pages     = {947 -- 959},
  year      = {2004},
  language  = {en}
}