@incollection{GonsiorHoffschmidt2008,
  author    = {Gonsior, Daniel and Hoffschmidt, Bernhard},
  title     = {Innovative Rußfilter f{\"u}r LKW-Dieselmotoren (Innotrap)},
  series = {Feinstaubforschung in Nordrhein-Westfalen. LANUV-Fachbericht. 9},
  booktitle = {Feinstaubforschung in Nordrhein-Westfalen. LANUV-Fachbericht. 9},
  publisher = {Landesamt f{\"u}r Natur, Umwelt und Verbraucherschutz Nordrhein-Westfalen},
  address   = {Recklinghausen},
  isbn      = {1864-3930},
  pages     = {13 -- 14},
  year      = {2008},
  language  = {de}
}
@incollection{KrokerHoffschmidtSchwarzeretal.2008,
  author    = {Kroker, Jan and Hoffschmidt, Bernhard and Schwarzer, Klemens and Sp{\"a}te, Frank},
  title     = {PTC 1000 modular parabolic trough collector},
  series = {Process heat collectors : state of the art within task 33/IV ; IEA SHC-Task 33 and SolarPACES-Task IV: Solar heat for industrial processes : F{\"o}rderkennzeichen BMBF 0329273A / Solar Heating and Cooling Executive Committee of the International Energy Agency (IEA) ; ed. Werner Weiss},
  booktitle = {Process heat collectors : state of the art within task 33/IV ; IEA SHC-Task 33 and SolarPACES-Task IV: Solar heat for industrial processes : F{\"o}rderkennzeichen BMBF 0329273A / Solar Heating and Cooling Executive Committee of the International Energy Agency (IEA) ; ed. Werner Weiss},
  publisher = {AEE INTEC},
  address   = {Gleisdorf},
  pages     = {45 -- 46},
  year      = {2008},
  language  = {en}
}