@misc{DrexlerVesterborg2011,
  author    = {Drexler, Hans and Vesterborg, Inge},
  title     = {Aarhus Minihaus},
  year      = {2011},
  language  = {mul}
}
@article{NRW2011,
  author    = {NRW, Architektenkammer},
  title     = {Gesamtperspektive Burg Wissem},
  series = {Ausloberpreis 2011},
  journal   = {Ausloberpreis 2011},
  pages     = {32 -- 33},
  year      = {2011},
  language  = {mul}
}
@incollection{OPUS4-3114,
  title     = {Metallwerkst{\"u}ck},
  series = {Alexander Otto: "Architektur.NRW-2011"},
  booktitle = {Alexander Otto: "Architektur.NRW-2011"},
  publisher = {exxtra-Werbung},
  address   = {Offenbach},
  isbn      = {ISBN 978-3-00-0341},
  pages     = {58 -- 59},
  year      = {2011},
  language  = {mul}
}
@article{Bodenbach2011,
  author    = {Bodenbach, Christof},
  title     = {Metallwerkst{\"u}ck},
  series = {Bauherr Industrie},
  volume    = {Baumeister},
  journal   = {Bauherr Industrie},
  number    = {B2, 2011},
  pages     = {66 -- 73},
  year      = {2011},
  language  = {mul}
}
@article{Ehrlinger2011,
  author    = {Ehrlinger, Susanne},
  title     = {Metallwerkst{\"u}ck},
  series = {Ausgezeichnete Architektur Deutscher Fassadenpreis 2011},
  journal   = {Ausgezeichnete Architektur Deutscher Fassadenpreis 2011},
  pages     = {14 -- 17},
  year      = {2011},
  language  = {mul}
}
@misc{DrexlerElKhouli2011,
  author    = {Drexler, Hans and El Khouli, Sebastian},
  title     = {Nachhaltig Entwerfen. Ganzheitliche Wohnkonzepte. Grundlagen, Strategien, Konzepte},
  year      = {2011},
  language  = {mul}
}
@misc{Drexler2011,
  author    = {Drexler, Hans},
  title     = {Sustainable by Design},
  year      = {2011},
  language  = {mul}
}
@incollection{SchultzGranberg2011,
  author    = {Schultz-Granberg, Joachim},
  title     = {Sustainable by Urban Design},
  series = {Carlo Quintelli, European City Architecture},
  booktitle = {Carlo Quintelli, European City Architecture},
  publisher = {Festival Architettura Edizioni},
  address   = {Parma},
  isbn      = {88-89739-18-1},
  pages     = {56 -- 61},
  year      = {2011},
  language  = {mul}
}
@article{Nagel2011,
  author    = {Nagel, Marc},
  title     = {Verfeinert trotz vieler K{\"o}che},
  series = {bba bau beratung architektur},
  journal   = {bba bau beratung architektur},
  number    = {2012},
  pages     = {6 -- 9},
  year      = {2011},
  language  = {mul}
}