@article{Patzkowsky2009,
  author    = {Patzkowsky, Tobias},
  title     = {Firma Briel baut ihren Verwaltungssitz neu},
  series = {Wittgensteiner Zeitung - Westfalenpost},
  journal   = {Wittgensteiner Zeitung - Westfalenpost},
  number    = {Nr. 56},
  pages     = {teil einer Seite},
  year      = {2009},
  language  = {mul}
}
@article{Arning2009,
  author    = {Arning, Matthias},
  title     = {Mearkenzeichen Greenbuilding},
  series = {Frankfurter Rundschau},
  journal   = {Frankfurter Rundschau},
  year      = {2009},
  language  = {mul}
}
@article{Drexler2009,
  author    = {Drexler, Hans},
  title     = {Torwards Sustainable Architecture},
  series = {Green Plattform},
  journal   = {Green Plattform},
  pages     = {64 -- 72},
  year      = {2009},
  language  = {mul}
}
@misc{DrexlerJauslinGuinand2009,
  author    = {Drexler, Hans and Jauslin, Daniel and Guinand, Marc},
  title     = {Minimum Impact House},
  year      = {2009},
  language  = {mul}
}